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10
docs/next/core/addresses.html
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@ -80,7 +80,7 @@ reason to keep using legacy transaction formats.</p>
<span class="hljs-keyword">val</span> privkey = <span class="hljs-type">ECPrivateKey</span>()
<span class="hljs-comment">// privkey: ECPrivateKey = Masked(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> pubkey = privkey.publicKey
<span class="hljs-comment">// pubkey: org.bitcoins.crypto.ECPublicKey = ECPublicKey(03f3d5100bed622e7c01c8e72e14778253e69d1c253b2f84d63305e3bd78851de9)</span>
<span class="hljs-comment">// pubkey: org.bitcoins.crypto.ECPublicKey = ECPublicKey(036ace2fceb271c5ca721e6e5826f2fa3128789fbd7c0c1db9bf42c67b72f8a23d)</span>
<span class="hljs-keyword">val</span> segwitAddress = {
<span class="hljs-comment">// see https://bitcoin.org/en/glossary/pubkey-script</span>
@ -89,10 +89,10 @@ reason to keep using legacy transaction formats.</p>
<span class="hljs-keyword">val</span> scriptPubKey = <span class="hljs-type">P2WPKHWitnessSPKV0</span>(pubkey)
<span class="hljs-type">Bech32Address</span>(scriptPubKey, <span class="hljs-type">TestNet3</span>)
}
<span class="hljs-comment">// segwitAddress: Bech32Address = tb1qnn0cez2f33xcecs6ahcx9p9u22mpk2ajfwxy45</span>
<span class="hljs-comment">// segwitAddress: Bech32Address = tb1qz93v34tdnmptk4w5jw2l5e2twdd62g9f27tv94</span>
println(segwitAddress.toString)
<span class="hljs-comment">// tb1qnn0cez2f33xcecs6ahcx9p9u22mpk2ajfwxy45</span>
<span class="hljs-comment">// tb1qz93v34tdnmptk4w5jw2l5e2twdd62g9f27tv94</span>
</code></pre>
<h2><a class="anchor" aria-hidden="true" id="generating-legacy-base58-addresses"></a><a href="#generating-legacy-base58-addresses" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Generating legacy (base58) addresses</h2>
<p>If you need to generate legacy addresses for backwards
@ -101,10 +101,10 @@ Take a look:</p>
<pre><code class="hljs css language-scala"><span class="hljs-comment">// we&#x27;re reusing the same private/public key pair</span>
<span class="hljs-comment">// from before. don&#x27;t do this in an actual application!</span>
<span class="hljs-keyword">val</span> legacyAddress = <span class="hljs-type">P2PKHAddress</span>(pubkey, <span class="hljs-type">TestNet3</span>)
<span class="hljs-comment">// legacyAddress: P2PKHAddress = mupRWS9DSs2Bx28q54NnQfTNp1cQahrWpm</span>
<span class="hljs-comment">// legacyAddress: P2PKHAddress = mh6t7yy2a4pFv1oCUAwWmYm7JTEpGnMRif</span>
println(legacyAddress.toString)
<span class="hljs-comment">// mupRWS9DSs2Bx28q54NnQfTNp1cQahrWpm</span>
<span class="hljs-comment">// mh6t7yy2a4pFv1oCUAwWmYm7JTEpGnMRif</span>
</code></pre>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/next/core/core-intro"><span class="arrow-prev">← </span><span>Core Module</span></a><a class="docs-next button" href="/docs/next/core/hd-keys"><span>HD Key Generation</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#generating-segwit-bech32-addresses">Generating SegWit (bech32) addresses</a></li><li><a href="#generating-legacy-base58-addresses">Generating legacy (base58) addresses</a></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><a href="/" class="nav-home"><img src="/img/favicon.ico" alt="bitcoin-s" width="66" height="58"/></a><div><h5>Docs</h5><a href="/docs/en/getting-started">Getting Started</a><a href="/docs/en/core/core-intro">Guides</a><a href="/api/org/bitcoins">API Reference</a></div><div><h5>Community</h5><a href="/en/users.html">User Showcase</a><a href="https://join.slack.com/t/suredbits/shared_invite/zt-eavycu0x-WQL7XOakzQo8tAy7jHHZUw" target="_blank" rel="noreferrer noopener">Slack</a><a href="https://gitter.im/bitcoin-s-core/">Gitter chat</a></div><div><h5>More</h5><a href="https://github.com/bitcoin-s/bitcoin-s">GitHub</a><a class="github-button" href="https://github.com/bitcoin-s/bitcoin-s" data-icon="octicon-star" data-count-href="/bitcoin-s/bitcoin-s-core/stargazers" data-show-count="true" data-count-aria-label="# stargazers on GitHub" aria-label="Star this project on GitHub">Star</a></div></section><section class="copyright">Copyright © 2021 Suredbits &amp; the bitcoin-s developers</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
document.addEventListener('keyup', function(e) {

10
docs/next/core/addresses/index.html
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@ -80,7 +80,7 @@ reason to keep using legacy transaction formats.</p>
<span class="hljs-keyword">val</span> privkey = <span class="hljs-type">ECPrivateKey</span>()
<span class="hljs-comment">// privkey: ECPrivateKey = Masked(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> pubkey = privkey.publicKey
<span class="hljs-comment">// pubkey: org.bitcoins.crypto.ECPublicKey = ECPublicKey(03f3d5100bed622e7c01c8e72e14778253e69d1c253b2f84d63305e3bd78851de9)</span>
<span class="hljs-comment">// pubkey: org.bitcoins.crypto.ECPublicKey = ECPublicKey(036ace2fceb271c5ca721e6e5826f2fa3128789fbd7c0c1db9bf42c67b72f8a23d)</span>
<span class="hljs-keyword">val</span> segwitAddress = {
<span class="hljs-comment">// see https://bitcoin.org/en/glossary/pubkey-script</span>
@ -89,10 +89,10 @@ reason to keep using legacy transaction formats.</p>
<span class="hljs-keyword">val</span> scriptPubKey = <span class="hljs-type">P2WPKHWitnessSPKV0</span>(pubkey)
<span class="hljs-type">Bech32Address</span>(scriptPubKey, <span class="hljs-type">TestNet3</span>)
}
<span class="hljs-comment">// segwitAddress: Bech32Address = tb1qnn0cez2f33xcecs6ahcx9p9u22mpk2ajfwxy45</span>
<span class="hljs-comment">// segwitAddress: Bech32Address = tb1qz93v34tdnmptk4w5jw2l5e2twdd62g9f27tv94</span>
println(segwitAddress.toString)
<span class="hljs-comment">// tb1qnn0cez2f33xcecs6ahcx9p9u22mpk2ajfwxy45</span>
<span class="hljs-comment">// tb1qz93v34tdnmptk4w5jw2l5e2twdd62g9f27tv94</span>
</code></pre>
<h2><a class="anchor" aria-hidden="true" id="generating-legacy-base58-addresses"></a><a href="#generating-legacy-base58-addresses" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Generating legacy (base58) addresses</h2>
<p>If you need to generate legacy addresses for backwards
@ -101,10 +101,10 @@ Take a look:</p>
<pre><code class="hljs css language-scala"><span class="hljs-comment">// we&#x27;re reusing the same private/public key pair</span>
<span class="hljs-comment">// from before. don&#x27;t do this in an actual application!</span>
<span class="hljs-keyword">val</span> legacyAddress = <span class="hljs-type">P2PKHAddress</span>(pubkey, <span class="hljs-type">TestNet3</span>)
<span class="hljs-comment">// legacyAddress: P2PKHAddress = mupRWS9DSs2Bx28q54NnQfTNp1cQahrWpm</span>
<span class="hljs-comment">// legacyAddress: P2PKHAddress = mh6t7yy2a4pFv1oCUAwWmYm7JTEpGnMRif</span>
println(legacyAddress.toString)
<span class="hljs-comment">// mupRWS9DSs2Bx28q54NnQfTNp1cQahrWpm</span>
<span class="hljs-comment">// mh6t7yy2a4pFv1oCUAwWmYm7JTEpGnMRif</span>
</code></pre>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/next/core/core-intro"><span class="arrow-prev">← </span><span>Core Module</span></a><a class="docs-next button" href="/docs/next/core/hd-keys"><span>HD Key Generation</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#generating-segwit-bech32-addresses">Generating SegWit (bech32) addresses</a></li><li><a href="#generating-legacy-base58-addresses">Generating legacy (base58) addresses</a></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><a href="/" class="nav-home"><img src="/img/favicon.ico" alt="bitcoin-s" width="66" height="58"/></a><div><h5>Docs</h5><a href="/docs/en/getting-started">Getting Started</a><a href="/docs/en/core/core-intro">Guides</a><a href="/api/org/bitcoins">API Reference</a></div><div><h5>Community</h5><a href="/en/users.html">User Showcase</a><a href="https://join.slack.com/t/suredbits/shared_invite/zt-eavycu0x-WQL7XOakzQo8tAy7jHHZUw" target="_blank" rel="noreferrer noopener">Slack</a><a href="https://gitter.im/bitcoin-s-core/">Gitter chat</a></div><div><h5>More</h5><a href="https://github.com/bitcoin-s/bitcoin-s">GitHub</a><a class="github-button" href="https://github.com/bitcoin-s/bitcoin-s" data-icon="octicon-star" data-count-href="/bitcoin-s/bitcoin-s-core/stargazers" data-show-count="true" data-count-aria-label="# stargazers on GitHub" aria-label="Star this project on GitHub">Star</a></div></section><section class="copyright">Copyright © 2021 Suredbits &amp; the bitcoin-s developers</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
document.addEventListener('keyup', function(e) {

12
docs/next/core/hd-keys.html
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@ -86,13 +86,13 @@ use that to generate further private and public keys:</p>
<span class="hljs-comment">// how long our phrase ends up being</span>
<span class="hljs-comment">// 256 bits of entropy results in 24 words</span>
<span class="hljs-keyword">val</span> entropy: <span class="hljs-type">BitVector</span> = <span class="hljs-type">MnemonicCode</span>.getEntropy256Bits
<span class="hljs-comment">// entropy: BitVector = BitVector(256 bits, 0xb2ae8a865ab6479274c9c7fb66871cef1d96d0f5a7a19fd01237c62472549f45)</span>
<span class="hljs-comment">// entropy: BitVector = BitVector(256 bits, 0x17238fa6fa53849b05bd0cc717c4ca4ba7c049f6394e0c6b530abc744e0a9587)</span>
<span class="hljs-keyword">val</span> mnemonicCode = <span class="hljs-type">MnemonicCode</span>.fromEntropy(entropy)
<span class="hljs-comment">// mnemonicCode: MnemonicCode = Masked(MnemonicCodeImpl)</span>
mnemonicCode.words <span class="hljs-comment">// the phrase the user should write down</span>
<span class="hljs-comment">// res0: Vector[String] = Vector(razor, inmate, pave, rely, good, since, spring, decline, window, crouch, shrimp, taste, sunny, half, story, vintage, panther, letter, mistake, middle, elbow, clean, laptop, sad) // the phrase the user should write down</span>
<span class="hljs-comment">// res0: Vector[String] = Vector(blame, broccoli, trust, visa, debate, eternal, black, pave, shove, sail, crater, nuclear, lab, ceiling, suggest, clap, arrest, fold, section, jump, eager, aim, figure, tip) // the phrase the user should write down</span>
<span class="hljs-comment">// the password argument is an optional, extra security</span>
<span class="hljs-comment">// measure. all MnemonicCode instances will give you a</span>
@ -108,7 +108,7 @@ mnemonicCode.words <span class="hljs-comment">// the phrase the user should writ
bip39Seed)
<span class="hljs-comment">// xpriv: ExtPrivateKey = Masked(ExtPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> xpub = xpriv.extPublicKey
<span class="hljs-comment">// xpub: ExtPublicKey = zpub6jftahH18ngZy9eVD9VmZav9DaJSg1i2LNQZC1SDEDFas8Sc7RTyFvgQD5RQEJScPvn5PjYw3aE9Rud87Z4BipnG1jQ5E2xBwkVY9gv5YoU</span>
<span class="hljs-comment">// xpub: ExtPublicKey = zpub6jftahH18ngZyRZN8UTCT4Mu6pX3UWQaVdbTwaMwop8H93PKHSpXDhqjsUve6uozvvVQ4KHZ7hrXVr1Me4zBLcpj9s6Eo1W6EiSHXwYdJ7U</span>
<span class="hljs-comment">// you can now use the generated xpriv to derive further</span>
<span class="hljs-comment">// private or public keys</span>
@ -154,7 +154,7 @@ spend or steal any of your money.</p>
<span class="hljs-comment">// can generate addresses with it!</span>
accountXpriv.extPublicKey
}
<span class="hljs-comment">// accountXpub: ExtPublicKey = zpub6s7k6suLSS1pFV1BhNJuEXvZ9KJ7d6gtRTm2iy3sQy2LBp9ztL7JSePpU2kzu2CGxvq5AhmB27KvLAT4a9b22CZjdKvdkgx3z3WEdgtxwbe</span>
<span class="hljs-comment">// accountXpub: ExtPublicKey = zpub6qLTtRCU8SagruE94Kd8pswhUn1y7Z1HYgazWyoJ76rxqpmn9XojiqiTmRGHrR1pLq2TuwwBVBhMY3PedXLuf33AMJ75HYoQbPgLzGZDv6B</span>
<span class="hljs-comment">// address no. 0 ---------------┐</span>
<span class="hljs-comment">// external address ----------┐ |</span>
@ -177,12 +177,12 @@ spend or steal any of your money.</p>
<span class="hljs-keyword">val</span> scriptPubKey = <span class="hljs-type">P2WPKHWitnessSPKV0</span>(pubkey)
<span class="hljs-type">Bech32Address</span>(scriptPubKey, <span class="hljs-type">TestNet3</span>)
}
<span class="hljs-comment">// firstAccountAddress: Bech32Address = tb1qk5t52da2hmlf4ddxlfs42serpzssnld5ww36tn</span>
<span class="hljs-comment">// firstAccountAddress: Bech32Address = tb1qatr8l7rm40rcxpg29640hanm6tftc5mw5euevx</span>
<span class="hljs-comment">// tada! We just generated an address you can send money to,</span>
<span class="hljs-comment">// without having access to the private key!</span>
firstAccountAddress.value
<span class="hljs-comment">// res2: String = tb1qk5t52da2hmlf4ddxlfs42serpzssnld5ww36tn</span>
<span class="hljs-comment">// res2: String = tb1qatr8l7rm40rcxpg29640hanm6tftc5mw5euevx</span>
<span class="hljs-comment">// you can now continue deriving addresses from the same public</span>
<span class="hljs-comment">// key, by imitating what we did above. To get the next</span>

12
docs/next/core/hd-keys/index.html
View file

@ -86,13 +86,13 @@ use that to generate further private and public keys:</p>
<span class="hljs-comment">// how long our phrase ends up being</span>
<span class="hljs-comment">// 256 bits of entropy results in 24 words</span>
<span class="hljs-keyword">val</span> entropy: <span class="hljs-type">BitVector</span> = <span class="hljs-type">MnemonicCode</span>.getEntropy256Bits
<span class="hljs-comment">// entropy: BitVector = BitVector(256 bits, 0xb2ae8a865ab6479274c9c7fb66871cef1d96d0f5a7a19fd01237c62472549f45)</span>
<span class="hljs-comment">// entropy: BitVector = BitVector(256 bits, 0x17238fa6fa53849b05bd0cc717c4ca4ba7c049f6394e0c6b530abc744e0a9587)</span>
<span class="hljs-keyword">val</span> mnemonicCode = <span class="hljs-type">MnemonicCode</span>.fromEntropy(entropy)
<span class="hljs-comment">// mnemonicCode: MnemonicCode = Masked(MnemonicCodeImpl)</span>
mnemonicCode.words <span class="hljs-comment">// the phrase the user should write down</span>
<span class="hljs-comment">// res0: Vector[String] = Vector(razor, inmate, pave, rely, good, since, spring, decline, window, crouch, shrimp, taste, sunny, half, story, vintage, panther, letter, mistake, middle, elbow, clean, laptop, sad) // the phrase the user should write down</span>
<span class="hljs-comment">// res0: Vector[String] = Vector(blame, broccoli, trust, visa, debate, eternal, black, pave, shove, sail, crater, nuclear, lab, ceiling, suggest, clap, arrest, fold, section, jump, eager, aim, figure, tip) // the phrase the user should write down</span>
<span class="hljs-comment">// the password argument is an optional, extra security</span>
<span class="hljs-comment">// measure. all MnemonicCode instances will give you a</span>
@ -108,7 +108,7 @@ mnemonicCode.words <span class="hljs-comment">// the phrase the user should writ
bip39Seed)
<span class="hljs-comment">// xpriv: ExtPrivateKey = Masked(ExtPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> xpub = xpriv.extPublicKey
<span class="hljs-comment">// xpub: ExtPublicKey = zpub6jftahH18ngZy9eVD9VmZav9DaJSg1i2LNQZC1SDEDFas8Sc7RTyFvgQD5RQEJScPvn5PjYw3aE9Rud87Z4BipnG1jQ5E2xBwkVY9gv5YoU</span>
<span class="hljs-comment">// xpub: ExtPublicKey = zpub6jftahH18ngZyRZN8UTCT4Mu6pX3UWQaVdbTwaMwop8H93PKHSpXDhqjsUve6uozvvVQ4KHZ7hrXVr1Me4zBLcpj9s6Eo1W6EiSHXwYdJ7U</span>
<span class="hljs-comment">// you can now use the generated xpriv to derive further</span>
<span class="hljs-comment">// private or public keys</span>
@ -154,7 +154,7 @@ spend or steal any of your money.</p>
<span class="hljs-comment">// can generate addresses with it!</span>
accountXpriv.extPublicKey
}
<span class="hljs-comment">// accountXpub: ExtPublicKey = zpub6s7k6suLSS1pFV1BhNJuEXvZ9KJ7d6gtRTm2iy3sQy2LBp9ztL7JSePpU2kzu2CGxvq5AhmB27KvLAT4a9b22CZjdKvdkgx3z3WEdgtxwbe</span>
<span class="hljs-comment">// accountXpub: ExtPublicKey = zpub6qLTtRCU8SagruE94Kd8pswhUn1y7Z1HYgazWyoJ76rxqpmn9XojiqiTmRGHrR1pLq2TuwwBVBhMY3PedXLuf33AMJ75HYoQbPgLzGZDv6B</span>
<span class="hljs-comment">// address no. 0 ---------------┐</span>
<span class="hljs-comment">// external address ----------┐ |</span>
@ -177,12 +177,12 @@ spend or steal any of your money.</p>
<span class="hljs-keyword">val</span> scriptPubKey = <span class="hljs-type">P2WPKHWitnessSPKV0</span>(pubkey)
<span class="hljs-type">Bech32Address</span>(scriptPubKey, <span class="hljs-type">TestNet3</span>)
}
<span class="hljs-comment">// firstAccountAddress: Bech32Address = tb1qk5t52da2hmlf4ddxlfs42serpzssnld5ww36tn</span>
<span class="hljs-comment">// firstAccountAddress: Bech32Address = tb1qatr8l7rm40rcxpg29640hanm6tftc5mw5euevx</span>
<span class="hljs-comment">// tada! We just generated an address you can send money to,</span>
<span class="hljs-comment">// without having access to the private key!</span>
firstAccountAddress.value
<span class="hljs-comment">// res2: String = tb1qk5t52da2hmlf4ddxlfs42serpzssnld5ww36tn</span>
<span class="hljs-comment">// res2: String = tb1qatr8l7rm40rcxpg29640hanm6tftc5mw5euevx</span>
<span class="hljs-comment">// you can now continue deriving addresses from the same public</span>
<span class="hljs-comment">// key, by imitating what we did above. To get the next</span>

36
docs/next/core/txbuilder.html
View file

@ -64,7 +64,7 @@
});
</script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/bitcoin-s/bitcoin-s/blob/master/docs/core/txbuilder.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 id="__docusaurus" class="postHeaderTitle">TxBuilder Example</h1></header><article><div><span><p>Bitcoin-S features a transaction building API that allows you to construct and sign Bitcoin transactions. Here's an example of how to use it</p>
<pre><code class="hljs css language-scala"><span class="hljs-keyword">implicit</span> <span class="hljs-keyword">val</span> ec: <span class="hljs-type">ExecutionContext</span> = <span class="hljs-type">ExecutionContext</span>.<span class="hljs-type">Implicits</span>.global
<span class="hljs-comment">// ec: ExecutionContext = scala.concurrent.impl.ExecutionContextImpl$$anon$3@732b6d60[Running, parallelism = 2, size = 2, active = 0, running = 0, steals = 33, tasks = 0, submissions = 0]</span>
<span class="hljs-comment">// ec: ExecutionContext = scala.concurrent.impl.ExecutionContextImpl$$anon$3@54f854cc[Running, parallelism = 2, size = 2, active = 0, running = 0, steals = 33, tasks = 0, submissions = 0]</span>
<span class="hljs-comment">// Initialize a transaction builder</span>
<span class="hljs-keyword">val</span> builder = <span class="hljs-type">RawTxBuilder</span>()
@ -74,19 +74,19 @@
<span class="hljs-keyword">val</span> privKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
<span class="hljs-comment">// privKey: ECPrivateKey = Masked(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> pubKey = privKey.publicKey
<span class="hljs-comment">// pubKey: ECPublicKey = ECPublicKey(02fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a)</span>
<span class="hljs-comment">// pubKey: ECPublicKey = ECPublicKey(0262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac)</span>
<span class="hljs-comment">// this is the script that the TxBuilder is going to create a</span>
<span class="hljs-comment">// script signature that validly spends this scriptPubKey</span>
<span class="hljs-keyword">val</span> creditingSpk = <span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = privKey.publicKey)
<span class="hljs-comment">// creditingSpk: P2PKHScriptPubKey = pkh(b85f3adbde1ec7b57afb5d727ccf15b1a07dcfa7)</span>
<span class="hljs-comment">// creditingSpk: P2PKHScriptPubKey = pkh(e29d4948dbe504d610a8b9fb4896f8eaaa17d616)</span>
<span class="hljs-keyword">val</span> amount = <span class="hljs-number">10000.</span>satoshis
<span class="hljs-comment">// amount: Satoshis = 10000 sats</span>
<span class="hljs-comment">// this is the UTXO we are going to be spending</span>
<span class="hljs-keyword">val</span> utxo =
<span class="hljs-type">TransactionOutput</span>(value = amount, scriptPubKey = creditingSpk)
<span class="hljs-comment">// utxo: TransactionOutput = TransactionOutput(10000 sats,pkh(b85f3adbde1ec7b57afb5d727ccf15b1a07dcfa7))</span>
<span class="hljs-comment">// utxo: TransactionOutput = TransactionOutput(10000 sats,pkh(e29d4948dbe504d610a8b9fb4896f8eaaa17d616))</span>
<span class="hljs-comment">// the private key that locks the funds for the script we are spending too</span>
<span class="hljs-keyword">val</span> destinationPrivKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
@ -99,7 +99,7 @@
<span class="hljs-comment">// the script that corresponds to destination private key, this is what is receiving the money</span>
<span class="hljs-keyword">val</span> destinationSPK =
<span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = destinationPrivKey.publicKey)
<span class="hljs-comment">// destinationSPK: P2PKHScriptPubKey = pkh(ddbe90e7cc9c672e767734c8ca0f20d25ab2fcdc)</span>
<span class="hljs-comment">// destinationSPK: P2PKHScriptPubKey = pkh(3511663e940759e5717159367fd03d5fd028136f)</span>
<span class="hljs-comment">// this is where we are sending money too</span>
<span class="hljs-comment">// we could add more destinations here if we</span>
@ -110,7 +110,7 @@
<span class="hljs-type">Vector</span>(destination0)
}
<span class="hljs-comment">// destinations: Vector[TransactionOutput] = Vector(TransactionOutput(5000 sats,pkh(ddbe90e7cc9c672e767734c8ca0f20d25ab2fcdc)))</span>
<span class="hljs-comment">// destinations: Vector[TransactionOutput] = Vector(TransactionOutput(5000 sats,pkh(3511663e940759e5717159367fd03d5fd028136f)))</span>
<span class="hljs-comment">// Add the destinations to the tx builder</span>
builder ++= destinations
@ -123,17 +123,17 @@ builder ++= destinations
inputs = <span class="hljs-type">Vector</span>.empty,
outputs = <span class="hljs-type">Vector</span>(utxo),
lockTime = <span class="hljs-type">UInt32</span>.zero)
<span class="hljs-comment">// creditingTx: BaseTransaction = BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(b85f3adbde1ec7b57afb5d727ccf15b1a07dcfa7))),UInt32Impl(0))</span>
<span class="hljs-comment">// creditingTx: BaseTransaction = BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(e29d4948dbe504d610a8b9fb4896f8eaaa17d616))),UInt32Impl(0))</span>
<span class="hljs-comment">// this is the information we need from the crediting TX</span>
<span class="hljs-comment">// to properly &quot;link&quot; it in the transaction we are creating</span>
<span class="hljs-keyword">val</span> outPoint = <span class="hljs-type">TransactionOutPoint</span>(creditingTx.txId, <span class="hljs-type">UInt32</span>.zero)
<span class="hljs-comment">// outPoint: TransactionOutPoint = TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0)</span>
<span class="hljs-comment">// outPoint: TransactionOutPoint = TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0)</span>
<span class="hljs-keyword">val</span> input = <span class="hljs-type">TransactionInput</span>(
outPoint,
<span class="hljs-type">EmptyScriptSignature</span>,
sequenceNumber = <span class="hljs-type">UInt32</span>.zero)
<span class="hljs-comment">// input: TransactionInput = TransactionInputImpl(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),EmptyScriptSignature,UInt32Impl(0))</span>
<span class="hljs-comment">// input: TransactionInput = TransactionInputImpl(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),EmptyScriptSignature,UInt32Impl(0))</span>
<span class="hljs-comment">// Add a new input to our builder</span>
builder += input
@ -141,11 +141,11 @@ builder += input
<span class="hljs-comment">// We can now generate a RawTxBuilderResult ready to be finalized</span>
<span class="hljs-keyword">val</span> builderResult = builder.result()
<span class="hljs-comment">// builderResult: RawTxBuilderResult = RawTxBuilderResult(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(ddbe90e7cc9c672e767734c8ca0f20d25ab2fcdc))),UInt32Impl(0))</span>
<span class="hljs-comment">// builderResult: RawTxBuilderResult = RawTxBuilderResult(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(3511663e940759e5717159367fd03d5fd028136f))),UInt32Impl(0))</span>
<span class="hljs-comment">// this contains the information needed to analyze our input during finalization</span>
<span class="hljs-keyword">val</span> inputInfo = <span class="hljs-type">P2PKHInputInfo</span>(outPoint, amount, privKey.publicKey)
<span class="hljs-comment">// inputInfo: P2PKHInputInfo = P2PKHInputInfo(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),10000 sats,ECPublicKey(02fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a))</span>
<span class="hljs-comment">// inputInfo: P2PKHInputInfo = P2PKHInputInfo(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),10000 sats,ECPublicKey(0262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac))</span>
<span class="hljs-comment">// this is how much we are going to pay as a fee to the network</span>
<span class="hljs-comment">// for this example, we are going to pay 1 satoshi per byte</span>
@ -155,18 +155,18 @@ builder += input
<span class="hljs-keyword">val</span> changePrivKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
<span class="hljs-comment">// changePrivKey: ECPrivateKey = Masked(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> changeSPK = <span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = changePrivKey.publicKey)
<span class="hljs-comment">// changeSPK: P2PKHScriptPubKey = pkh(8fbb34c539efc2aa45a17bdf1c0b7f533de5ff50)</span>
<span class="hljs-comment">// changeSPK: P2PKHScriptPubKey = pkh(2705fdc3c0a896d73b4ac4a1378492abb37c5503)</span>
<span class="hljs-comment">// We chose a finalizer that adds a change output to our tx based on a fee rate</span>
<span class="hljs-keyword">val</span> finalizer = <span class="hljs-type">StandardNonInteractiveFinalizer</span>(
<span class="hljs-type">Vector</span>(inputInfo),
feeRate,
changeSPK)
<span class="hljs-comment">// finalizer: StandardNonInteractiveFinalizer = StandardNonInteractiveFinalizer(Vector(P2PKHInputInfo(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),10000 sats,ECPublicKey(02fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a))),1 sats/byte,pkh(8fbb34c539efc2aa45a17bdf1c0b7f533de5ff50))</span>
<span class="hljs-comment">// finalizer: StandardNonInteractiveFinalizer = StandardNonInteractiveFinalizer(Vector(P2PKHInputInfo(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),10000 sats,ECPublicKey(0262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac))),1 sats/byte,pkh(2705fdc3c0a896d73b4ac4a1378492abb37c5503))</span>
<span class="hljs-comment">// We can now finalize the tx builder result from earlier with this finalizer</span>
<span class="hljs-keyword">val</span> unsignedTxF: <span class="hljs-type">Future</span>[<span class="hljs-type">Transaction</span>] = finalizer.buildTx(builderResult)
<span class="hljs-comment">// unsignedTxF: Future[Transaction] = Future(Success(BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(ddbe90e7cc9c672e767734c8ca0f20d25ab2fcdc)), TransactionOutput(4775 sats,pkh(8fbb34c539efc2aa45a17bdf1c0b7f533de5ff50))),UInt32Impl(0))))</span>
<span class="hljs-comment">// unsignedTxF: Future[Transaction] = Future(Success(BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(3511663e940759e5717159367fd03d5fd028136f)), TransactionOutput(4775 sats,pkh(2705fdc3c0a896d73b4ac4a1378492abb37c5503))),UInt32Impl(0))))</span>
<span class="hljs-comment">// We now turn to signing the unsigned transaction</span>
<span class="hljs-comment">// this contains all the information we need to</span>
@ -176,12 +176,12 @@ builder += input
signers = <span class="hljs-type">Vector</span>(privKey),
hashType =
<span class="hljs-type">HashType</span>.sigHashAll)
<span class="hljs-comment">// utxoInfo: ScriptSignatureParams[P2PKHInputInfo] = ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),10000 sats,ECPublicKey(02fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(b85f3adbde1ec7b57afb5d727ccf15b1a07dcfa7))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),SIGHASH_ALL(Int32Impl(1)))</span>
<span class="hljs-comment">// utxoInfo: ScriptSignatureParams[P2PKHInputInfo] = ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),10000 sats,ECPublicKey(0262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(e29d4948dbe504d610a8b9fb4896f8eaaa17d616))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),SIGHASH_ALL(Int32Impl(1)))</span>
<span class="hljs-comment">// all of the UTXO spending information, since we only have</span>
<span class="hljs-comment">// one input, this is just one element</span>
<span class="hljs-keyword">val</span> utxoInfos: <span class="hljs-type">Vector</span>[<span class="hljs-type">ScriptSignatureParams</span>[<span class="hljs-type">InputInfo</span>]] = <span class="hljs-type">Vector</span>(utxoInfo)
<span class="hljs-comment">// utxoInfos: Vector[ScriptSignatureParams[InputInfo]] = Vector(ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),10000 sats,ECPublicKey(02fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(b85f3adbde1ec7b57afb5d727ccf15b1a07dcfa7))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),SIGHASH_ALL(Int32Impl(1))))</span>
<span class="hljs-comment">// utxoInfos: Vector[ScriptSignatureParams[InputInfo]] = Vector(ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),10000 sats,ECPublicKey(0262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(e29d4948dbe504d610a8b9fb4896f8eaaa17d616))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),SIGHASH_ALL(Int32Impl(1))))</span>
<span class="hljs-comment">// Yay! Now we use the RawTxSigner object to sign the tx.</span>
<span class="hljs-comment">// The &#x27;sign&#x27; method is going produce a validly signed transaction</span>
@ -201,7 +201,7 @@ builder += input
}
<span class="hljs-type">Await</span>.result(signedTxF, <span class="hljs-number">30.</span>seconds)
}
<span class="hljs-comment">// signedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),P2PKHScriptSignature(ECPublicKey(02fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a), ECDigitalSignature(304402204dcfe76292083fa6c77f648c4868fe4f2c672faa2c812ba74b035cb077a3e05a02207e08f192d7d49bb550b18763a364c35d67b6e3fc28abe3a157761ec4ebf58d6b01)),UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(ddbe90e7cc9c672e767734c8ca0f20d25ab2fcdc)), TransactionOutput(4775 sats,pkh(8fbb34c539efc2aa45a17bdf1c0b7f533de5ff50))),UInt32Impl(0))</span>
<span class="hljs-comment">// signedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),P2PKHScriptSignature(ECPublicKey(0262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac), ECDigitalSignature(304402202a45f77cb8c10cd83a4f68200c0c01ddf60bafa0b965149708038855def3ddac02200a8126ca3bd8fa8190d03e64e982b0e524d9a1ce9779619596ff9faaf0355cb401)),UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(3511663e940759e5717159367fd03d5fd028136f)), TransactionOutput(4775 sats,pkh(2705fdc3c0a896d73b4ac4a1378492abb37c5503))),UInt32Impl(0))</span>
</code></pre>
<pre><code class="hljs css language-scala">signedTx.inputs.length
<span class="hljs-comment">// res2: Int = 1</span>
@ -211,7 +211,7 @@ signedTx.outputs.length
<span class="hljs-comment">//remember, you can call .hex on any bitcoin-s data structure to get the hex representation!</span>
signedTx.hex
<span class="hljs-comment">// res4: String = 0200000001816b542b05e096302e117355a2927e3b3607f691c3bd5b88b609b28a253174b1000000006a47304402204dcfe76292083fa6c77f648c4868fe4f2c672faa2c812ba74b035cb077a3e05a02207e08f192d7d49bb550b18763a364c35d67b6e3fc28abe3a157761ec4ebf58d6b012102fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a000000000288130000000000001976a914ddbe90e7cc9c672e767734c8ca0f20d25ab2fcdc88aca7120000000000001976a9148fbb34c539efc2aa45a17bdf1c0b7f533de5ff5088ac00000000</span>
<span class="hljs-comment">// res4: String = 0200000001a0eb6987bbcf38c4c3ed923bec71b1845cc042293f55efb00abae1ce7f7ec229000000006a47304402202a45f77cb8c10cd83a4f68200c0c01ddf60bafa0b965149708038855def3ddac02200a8126ca3bd8fa8190d03e64e982b0e524d9a1ce9779619596ff9faaf0355cb401210262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac000000000288130000000000001976a9143511663e940759e5717159367fd03d5fd028136f88aca7120000000000001976a9142705fdc3c0a896d73b4ac4a1378492abb37c550388ac00000000</span>
</code></pre>
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@ -64,7 +64,7 @@
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</script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/bitcoin-s/bitcoin-s/blob/master/docs/core/txbuilder.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 id="__docusaurus" class="postHeaderTitle">TxBuilder Example</h1></header><article><div><span><p>Bitcoin-S features a transaction building API that allows you to construct and sign Bitcoin transactions. Here's an example of how to use it</p>
<pre><code class="hljs css language-scala"><span class="hljs-keyword">implicit</span> <span class="hljs-keyword">val</span> ec: <span class="hljs-type">ExecutionContext</span> = <span class="hljs-type">ExecutionContext</span>.<span class="hljs-type">Implicits</span>.global
<span class="hljs-comment">// ec: ExecutionContext = scala.concurrent.impl.ExecutionContextImpl$$anon$3@732b6d60[Running, parallelism = 2, size = 2, active = 0, running = 0, steals = 33, tasks = 0, submissions = 0]</span>
<span class="hljs-comment">// ec: ExecutionContext = scala.concurrent.impl.ExecutionContextImpl$$anon$3@54f854cc[Running, parallelism = 2, size = 2, active = 0, running = 0, steals = 33, tasks = 0, submissions = 0]</span>
<span class="hljs-comment">// Initialize a transaction builder</span>
<span class="hljs-keyword">val</span> builder = <span class="hljs-type">RawTxBuilder</span>()
@ -74,19 +74,19 @@
<span class="hljs-keyword">val</span> privKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
<span class="hljs-comment">// privKey: ECPrivateKey = Masked(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> pubKey = privKey.publicKey
<span class="hljs-comment">// pubKey: ECPublicKey = ECPublicKey(02fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a)</span>
<span class="hljs-comment">// pubKey: ECPublicKey = ECPublicKey(0262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac)</span>
<span class="hljs-comment">// this is the script that the TxBuilder is going to create a</span>
<span class="hljs-comment">// script signature that validly spends this scriptPubKey</span>
<span class="hljs-keyword">val</span> creditingSpk = <span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = privKey.publicKey)
<span class="hljs-comment">// creditingSpk: P2PKHScriptPubKey = pkh(b85f3adbde1ec7b57afb5d727ccf15b1a07dcfa7)</span>
<span class="hljs-comment">// creditingSpk: P2PKHScriptPubKey = pkh(e29d4948dbe504d610a8b9fb4896f8eaaa17d616)</span>
<span class="hljs-keyword">val</span> amount = <span class="hljs-number">10000.</span>satoshis
<span class="hljs-comment">// amount: Satoshis = 10000 sats</span>
<span class="hljs-comment">// this is the UTXO we are going to be spending</span>
<span class="hljs-keyword">val</span> utxo =
<span class="hljs-type">TransactionOutput</span>(value = amount, scriptPubKey = creditingSpk)
<span class="hljs-comment">// utxo: TransactionOutput = TransactionOutput(10000 sats,pkh(b85f3adbde1ec7b57afb5d727ccf15b1a07dcfa7))</span>
<span class="hljs-comment">// utxo: TransactionOutput = TransactionOutput(10000 sats,pkh(e29d4948dbe504d610a8b9fb4896f8eaaa17d616))</span>
<span class="hljs-comment">// the private key that locks the funds for the script we are spending too</span>
<span class="hljs-keyword">val</span> destinationPrivKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
@ -99,7 +99,7 @@
<span class="hljs-comment">// the script that corresponds to destination private key, this is what is receiving the money</span>
<span class="hljs-keyword">val</span> destinationSPK =
<span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = destinationPrivKey.publicKey)
<span class="hljs-comment">// destinationSPK: P2PKHScriptPubKey = pkh(ddbe90e7cc9c672e767734c8ca0f20d25ab2fcdc)</span>
<span class="hljs-comment">// destinationSPK: P2PKHScriptPubKey = pkh(3511663e940759e5717159367fd03d5fd028136f)</span>
<span class="hljs-comment">// this is where we are sending money too</span>
<span class="hljs-comment">// we could add more destinations here if we</span>
@ -110,7 +110,7 @@
<span class="hljs-type">Vector</span>(destination0)
}
<span class="hljs-comment">// destinations: Vector[TransactionOutput] = Vector(TransactionOutput(5000 sats,pkh(ddbe90e7cc9c672e767734c8ca0f20d25ab2fcdc)))</span>
<span class="hljs-comment">// destinations: Vector[TransactionOutput] = Vector(TransactionOutput(5000 sats,pkh(3511663e940759e5717159367fd03d5fd028136f)))</span>
<span class="hljs-comment">// Add the destinations to the tx builder</span>
builder ++= destinations
@ -123,17 +123,17 @@ builder ++= destinations
inputs = <span class="hljs-type">Vector</span>.empty,
outputs = <span class="hljs-type">Vector</span>(utxo),
lockTime = <span class="hljs-type">UInt32</span>.zero)
<span class="hljs-comment">// creditingTx: BaseTransaction = BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(b85f3adbde1ec7b57afb5d727ccf15b1a07dcfa7))),UInt32Impl(0))</span>
<span class="hljs-comment">// creditingTx: BaseTransaction = BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(e29d4948dbe504d610a8b9fb4896f8eaaa17d616))),UInt32Impl(0))</span>
<span class="hljs-comment">// this is the information we need from the crediting TX</span>
<span class="hljs-comment">// to properly &quot;link&quot; it in the transaction we are creating</span>
<span class="hljs-keyword">val</span> outPoint = <span class="hljs-type">TransactionOutPoint</span>(creditingTx.txId, <span class="hljs-type">UInt32</span>.zero)
<span class="hljs-comment">// outPoint: TransactionOutPoint = TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0)</span>
<span class="hljs-comment">// outPoint: TransactionOutPoint = TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0)</span>
<span class="hljs-keyword">val</span> input = <span class="hljs-type">TransactionInput</span>(
outPoint,
<span class="hljs-type">EmptyScriptSignature</span>,
sequenceNumber = <span class="hljs-type">UInt32</span>.zero)
<span class="hljs-comment">// input: TransactionInput = TransactionInputImpl(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),EmptyScriptSignature,UInt32Impl(0))</span>
<span class="hljs-comment">// input: TransactionInput = TransactionInputImpl(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),EmptyScriptSignature,UInt32Impl(0))</span>
<span class="hljs-comment">// Add a new input to our builder</span>
builder += input
@ -141,11 +141,11 @@ builder += input
<span class="hljs-comment">// We can now generate a RawTxBuilderResult ready to be finalized</span>
<span class="hljs-keyword">val</span> builderResult = builder.result()
<span class="hljs-comment">// builderResult: RawTxBuilderResult = RawTxBuilderResult(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(ddbe90e7cc9c672e767734c8ca0f20d25ab2fcdc))),UInt32Impl(0))</span>
<span class="hljs-comment">// builderResult: RawTxBuilderResult = RawTxBuilderResult(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(3511663e940759e5717159367fd03d5fd028136f))),UInt32Impl(0))</span>
<span class="hljs-comment">// this contains the information needed to analyze our input during finalization</span>
<span class="hljs-keyword">val</span> inputInfo = <span class="hljs-type">P2PKHInputInfo</span>(outPoint, amount, privKey.publicKey)
<span class="hljs-comment">// inputInfo: P2PKHInputInfo = P2PKHInputInfo(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),10000 sats,ECPublicKey(02fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a))</span>
<span class="hljs-comment">// inputInfo: P2PKHInputInfo = P2PKHInputInfo(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),10000 sats,ECPublicKey(0262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac))</span>
<span class="hljs-comment">// this is how much we are going to pay as a fee to the network</span>
<span class="hljs-comment">// for this example, we are going to pay 1 satoshi per byte</span>
@ -155,18 +155,18 @@ builder += input
<span class="hljs-keyword">val</span> changePrivKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
<span class="hljs-comment">// changePrivKey: ECPrivateKey = Masked(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> changeSPK = <span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = changePrivKey.publicKey)
<span class="hljs-comment">// changeSPK: P2PKHScriptPubKey = pkh(8fbb34c539efc2aa45a17bdf1c0b7f533de5ff50)</span>
<span class="hljs-comment">// changeSPK: P2PKHScriptPubKey = pkh(2705fdc3c0a896d73b4ac4a1378492abb37c5503)</span>
<span class="hljs-comment">// We chose a finalizer that adds a change output to our tx based on a fee rate</span>
<span class="hljs-keyword">val</span> finalizer = <span class="hljs-type">StandardNonInteractiveFinalizer</span>(
<span class="hljs-type">Vector</span>(inputInfo),
feeRate,
changeSPK)
<span class="hljs-comment">// finalizer: StandardNonInteractiveFinalizer = StandardNonInteractiveFinalizer(Vector(P2PKHInputInfo(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),10000 sats,ECPublicKey(02fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a))),1 sats/byte,pkh(8fbb34c539efc2aa45a17bdf1c0b7f533de5ff50))</span>
<span class="hljs-comment">// finalizer: StandardNonInteractiveFinalizer = StandardNonInteractiveFinalizer(Vector(P2PKHInputInfo(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),10000 sats,ECPublicKey(0262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac))),1 sats/byte,pkh(2705fdc3c0a896d73b4ac4a1378492abb37c5503))</span>
<span class="hljs-comment">// We can now finalize the tx builder result from earlier with this finalizer</span>
<span class="hljs-keyword">val</span> unsignedTxF: <span class="hljs-type">Future</span>[<span class="hljs-type">Transaction</span>] = finalizer.buildTx(builderResult)
<span class="hljs-comment">// unsignedTxF: Future[Transaction] = Future(Success(BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(ddbe90e7cc9c672e767734c8ca0f20d25ab2fcdc)), TransactionOutput(4775 sats,pkh(8fbb34c539efc2aa45a17bdf1c0b7f533de5ff50))),UInt32Impl(0))))</span>
<span class="hljs-comment">// unsignedTxF: Future[Transaction] = Future(Success(BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(3511663e940759e5717159367fd03d5fd028136f)), TransactionOutput(4775 sats,pkh(2705fdc3c0a896d73b4ac4a1378492abb37c5503))),UInt32Impl(0))))</span>
<span class="hljs-comment">// We now turn to signing the unsigned transaction</span>
<span class="hljs-comment">// this contains all the information we need to</span>
@ -176,12 +176,12 @@ builder += input
signers = <span class="hljs-type">Vector</span>(privKey),
hashType =
<span class="hljs-type">HashType</span>.sigHashAll)
<span class="hljs-comment">// utxoInfo: ScriptSignatureParams[P2PKHInputInfo] = ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),10000 sats,ECPublicKey(02fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(b85f3adbde1ec7b57afb5d727ccf15b1a07dcfa7))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),SIGHASH_ALL(Int32Impl(1)))</span>
<span class="hljs-comment">// utxoInfo: ScriptSignatureParams[P2PKHInputInfo] = ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),10000 sats,ECPublicKey(0262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(e29d4948dbe504d610a8b9fb4896f8eaaa17d616))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),SIGHASH_ALL(Int32Impl(1)))</span>
<span class="hljs-comment">// all of the UTXO spending information, since we only have</span>
<span class="hljs-comment">// one input, this is just one element</span>
<span class="hljs-keyword">val</span> utxoInfos: <span class="hljs-type">Vector</span>[<span class="hljs-type">ScriptSignatureParams</span>[<span class="hljs-type">InputInfo</span>]] = <span class="hljs-type">Vector</span>(utxoInfo)
<span class="hljs-comment">// utxoInfos: Vector[ScriptSignatureParams[InputInfo]] = Vector(ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),10000 sats,ECPublicKey(02fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(b85f3adbde1ec7b57afb5d727ccf15b1a07dcfa7))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),SIGHASH_ALL(Int32Impl(1))))</span>
<span class="hljs-comment">// utxoInfos: Vector[ScriptSignatureParams[InputInfo]] = Vector(ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),10000 sats,ECPublicKey(0262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(e29d4948dbe504d610a8b9fb4896f8eaaa17d616))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),SIGHASH_ALL(Int32Impl(1))))</span>
<span class="hljs-comment">// Yay! Now we use the RawTxSigner object to sign the tx.</span>
<span class="hljs-comment">// The &#x27;sign&#x27; method is going produce a validly signed transaction</span>
@ -201,7 +201,7 @@ builder += input
}
<span class="hljs-type">Await</span>.result(signedTxF, <span class="hljs-number">30.</span>seconds)
}
<span class="hljs-comment">// signedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(b17431258ab209b6885bbdc391f607363b7e92a25573112e3096e0052b546b81:0),P2PKHScriptSignature(ECPublicKey(02fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a), ECDigitalSignature(304402204dcfe76292083fa6c77f648c4868fe4f2c672faa2c812ba74b035cb077a3e05a02207e08f192d7d49bb550b18763a364c35d67b6e3fc28abe3a157761ec4ebf58d6b01)),UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(ddbe90e7cc9c672e767734c8ca0f20d25ab2fcdc)), TransactionOutput(4775 sats,pkh(8fbb34c539efc2aa45a17bdf1c0b7f533de5ff50))),UInt32Impl(0))</span>
<span class="hljs-comment">// signedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(29c27e7fcee1ba0ab0ef553f2942c05c84b171ec3b92edc3c438cfbb8769eba0:0),P2PKHScriptSignature(ECPublicKey(0262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac), ECDigitalSignature(304402202a45f77cb8c10cd83a4f68200c0c01ddf60bafa0b965149708038855def3ddac02200a8126ca3bd8fa8190d03e64e982b0e524d9a1ce9779619596ff9faaf0355cb401)),UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(3511663e940759e5717159367fd03d5fd028136f)), TransactionOutput(4775 sats,pkh(2705fdc3c0a896d73b4ac4a1378492abb37c5503))),UInt32Impl(0))</span>
</code></pre>
<pre><code class="hljs css language-scala">signedTx.inputs.length
<span class="hljs-comment">// res2: Int = 1</span>
@ -211,7 +211,7 @@ signedTx.outputs.length
<span class="hljs-comment">//remember, you can call .hex on any bitcoin-s data structure to get the hex representation!</span>
signedTx.hex
<span class="hljs-comment">// res4: String = 0200000001816b542b05e096302e117355a2927e3b3607f691c3bd5b88b609b28a253174b1000000006a47304402204dcfe76292083fa6c77f648c4868fe4f2c672faa2c812ba74b035cb077a3e05a02207e08f192d7d49bb550b18763a364c35d67b6e3fc28abe3a157761ec4ebf58d6b012102fdfc0232c6cbaf1bc027254d13c58ceeed82c07cd902bc672536e3f5e3b8ec1a000000000288130000000000001976a914ddbe90e7cc9c672e767734c8ca0f20d25ab2fcdc88aca7120000000000001976a9148fbb34c539efc2aa45a17bdf1c0b7f533de5ff5088ac00000000</span>
<span class="hljs-comment">// res4: String = 0200000001a0eb6987bbcf38c4c3ed923bec71b1845cc042293f55efb00abae1ce7f7ec229000000006a47304402202a45f77cb8c10cd83a4f68200c0c01ddf60bafa0b965149708038855def3ddac02200a8126ca3bd8fa8190d03e64e982b0e524d9a1ce9779619596ff9faaf0355cb401210262c0c85dbd1f9804a58165e56d085e22fda155280382f4d099cdae1e03bea3ac000000000288130000000000001976a9143511663e940759e5717159367fd03d5fd028136f88aca7120000000000001976a9142705fdc3c0a896d73b4ac4a1378492abb37c550388ac00000000</span>
</code></pre>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/next/core/psbts"><span class="arrow-prev">← </span><span>Partially Signed Bitcoin Transactions</span></a><a class="docs-next button" href="/docs/next/core/lightning-network"><span>Lightning Network Data Types</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><a href="/" class="nav-home"><img src="/img/favicon.ico" alt="bitcoin-s" width="66" height="58"/></a><div><h5>Docs</h5><a href="/docs/en/getting-started">Getting Started</a><a href="/docs/en/core/core-intro">Guides</a><a href="/api/org/bitcoins">API Reference</a></div><div><h5>Community</h5><a href="/en/users.html">User Showcase</a><a href="https://join.slack.com/t/suredbits/shared_invite/zt-eavycu0x-WQL7XOakzQo8tAy7jHHZUw" target="_blank" rel="noreferrer noopener">Slack</a><a href="https://gitter.im/bitcoin-s-core/">Gitter chat</a></div><div><h5>More</h5><a href="https://github.com/bitcoin-s/bitcoin-s">GitHub</a><a class="github-button" href="https://github.com/bitcoin-s/bitcoin-s" data-icon="octicon-star" data-count-href="/bitcoin-s/bitcoin-s-core/stargazers" data-show-count="true" data-count-aria-label="# stargazers on GitHub" aria-label="Star this project on GitHub">Star</a></div></section><section class="copyright">Copyright © 2021 Suredbits &amp; the bitcoin-s developers</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
document.addEventListener('keyup', function(e) {

4
docs/next/crypto/sign.html
View file

@ -96,13 +96,13 @@
<span class="hljs-comment">// extPrivKey: ExtPrivateKey = Masked(ExtPrivateKeyImpl)</span>
extPrivKey.sign(<span class="hljs-type">DoubleSha256Digest</span>.empty.bytes)
<span class="hljs-comment">// res0: ECDigitalSignature = ECDigitalSignature(3045022100f540b4974fb317523531df036a09633027db62aee7b126e54d2e180e3c2587b002203f93c09e8f2912354aaf7c0f4bb08565c2262c5e788a0dcb517b4a514b232c8d)</span>
<span class="hljs-comment">// res0: ECDigitalSignature = ECDigitalSignature(304402206998b01f9069ff0ff50b458b8361082c327b7c2621dbacc928e6f8ceb83c193a02202eee12b83adaed5e6f50bdde47b2eae68b83cdcb98cc6ec4ecb00d44fd9e28d4)</span>
<span class="hljs-keyword">val</span> path = <span class="hljs-type">BIP32Path</span>(<span class="hljs-type">Vector</span>(<span class="hljs-type">BIP32Node</span>(<span class="hljs-number">0</span>,<span class="hljs-literal">false</span>)))
<span class="hljs-comment">// path: BIP32Path = m/0</span>
extPrivKey.sign(<span class="hljs-type">DoubleSha256Digest</span>.empty.bytes,path)
<span class="hljs-comment">// res1: ECDigitalSignature = ECDigitalSignature(304402207d5afb4b05ed8c48b8b90b7f358d783ac3ea6254c592e61ec8fd51f23dc646e902203291df41137e08cb3e43be3f726dd7efe609f27c607b97a935c7a23d18002ce0)</span>
<span class="hljs-comment">// res1: ECDigitalSignature = ECDigitalSignature(304402201cc362e2de839185816d382761a81cd952e526b23c9c83a7d2f4089d8480011602207b1a3d9eddd99f3cc572b71d95ebd66f2f83297daf900d828c1e23f9eeacadc3)</span>
</code></pre>
<p>With <code>ExtSign</code>, you can use <code>ExtPrivateKey</code> to sign transactions inside of <code>TxBuilder</code> since <code>UTXOSpendingInfo</code> takes in <code>Sign</code> as a parameter.</p>
<p>You can also provide a <code>path</code> to use to derive a child <code>ExtPrivateKey</code>, and then sign with that child private key</p>

4
docs/next/crypto/sign/index.html
View file

@ -96,13 +96,13 @@
<span class="hljs-comment">// extPrivKey: ExtPrivateKey = Masked(ExtPrivateKeyImpl)</span>
extPrivKey.sign(<span class="hljs-type">DoubleSha256Digest</span>.empty.bytes)
<span class="hljs-comment">// res0: ECDigitalSignature = ECDigitalSignature(3045022100f540b4974fb317523531df036a09633027db62aee7b126e54d2e180e3c2587b002203f93c09e8f2912354aaf7c0f4bb08565c2262c5e788a0dcb517b4a514b232c8d)</span>
<span class="hljs-comment">// res0: ECDigitalSignature = ECDigitalSignature(304402206998b01f9069ff0ff50b458b8361082c327b7c2621dbacc928e6f8ceb83c193a02202eee12b83adaed5e6f50bdde47b2eae68b83cdcb98cc6ec4ecb00d44fd9e28d4)</span>
<span class="hljs-keyword">val</span> path = <span class="hljs-type">BIP32Path</span>(<span class="hljs-type">Vector</span>(<span class="hljs-type">BIP32Node</span>(<span class="hljs-number">0</span>,<span class="hljs-literal">false</span>)))
<span class="hljs-comment">// path: BIP32Path = m/0</span>
extPrivKey.sign(<span class="hljs-type">DoubleSha256Digest</span>.empty.bytes,path)
<span class="hljs-comment">// res1: ECDigitalSignature = ECDigitalSignature(304402207d5afb4b05ed8c48b8b90b7f358d783ac3ea6254c592e61ec8fd51f23dc646e902203291df41137e08cb3e43be3f726dd7efe609f27c607b97a935c7a23d18002ce0)</span>
<span class="hljs-comment">// res1: ECDigitalSignature = ECDigitalSignature(304402201cc362e2de839185816d382761a81cd952e526b23c9c83a7d2f4089d8480011602207b1a3d9eddd99f3cc572b71d95ebd66f2f83297daf900d828c1e23f9eeacadc3)</span>
</code></pre>
<p>With <code>ExtSign</code>, you can use <code>ExtPrivateKey</code> to sign transactions inside of <code>TxBuilder</code> since <code>UTXOSpendingInfo</code> takes in <code>Sign</code> as a parameter.</p>
<p>You can also provide a <code>path</code> to use to derive a child <code>ExtPrivateKey</code>, and then sign with that child private key</p>

2
docs/next/getting-started.html
View file

@ -120,7 +120,7 @@ libraryDependencies += <span class="hljs-string">&quot;org.bitcoin-s&quot;</span
<h3><a class="anchor" aria-hidden="true" id="nightly-builds"></a><a href="#nightly-builds" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Nightly builds</h3>
<p>You can also run on the bleeding edge of Bitcoin-S, by
adding a snapshot build to your <code>build.sbt</code>. The most
recent snapshot published is <code>0.4.0+224-78e28baf-SNAPSHOT</code>.</p>
recent snapshot published is <code>0.4.0+225-ecc4532b-SNAPSHOT</code>.</p>
<p>To fetch snapshots, you will need to add the correct
resolver in your <code>build.sbt</code>:</p>
<pre><code class="hljs css language-sbt">resolvers += Resolver.sonatypeRepo(<span class="hljs-string">&quot;snapshots&quot;</span>)

2
docs/next/getting-started/index.html
View file

@ -120,7 +120,7 @@ libraryDependencies += <span class="hljs-string">&quot;org.bitcoin-s&quot;</span
<h3><a class="anchor" aria-hidden="true" id="nightly-builds"></a><a href="#nightly-builds" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Nightly builds</h3>
<p>You can also run on the bleeding edge of Bitcoin-S, by
adding a snapshot build to your <code>build.sbt</code>. The most
recent snapshot published is <code>0.4.0+224-78e28baf-SNAPSHOT</code>.</p>
recent snapshot published is <code>0.4.0+225-ecc4532b-SNAPSHOT</code>.</p>
<p>To fetch snapshots, you will need to add the correct
resolver in your <code>build.sbt</code>:</p>
<pre><code class="hljs css language-sbt">resolvers += Resolver.sonatypeRepo(<span class="hljs-string">&quot;snapshots&quot;</span>)

22
docs/next/key-manager/key-manager.html
View file

@ -77,14 +77,14 @@
<span class="hljs-comment">//get 256 bits of random entropy</span>
<span class="hljs-keyword">val</span> entropy = <span class="hljs-type">MnemonicCode</span>.getEntropy256Bits
<span class="hljs-comment">// entropy: scodec.bits.BitVector = BitVector(256 bits, 0x26b1c14c023dba2067a03e891b68254de38595730baca8708456715b881191d7)</span>
<span class="hljs-comment">// entropy: scodec.bits.BitVector = BitVector(256 bits, 0xc30ca7acd12ecf043ea3fabf257e5adf1beec5c2a661478ed7a3de7efe28aecc)</span>
<span class="hljs-keyword">val</span> mnemonic = <span class="hljs-type">MnemonicCode</span>.fromEntropy(entropy)
<span class="hljs-comment">// mnemonic: MnemonicCode = Masked(MnemonicCodeImpl)</span>
<span class="hljs-comment">//you can print that mnemonic seed with this</span>
println(mnemonic.words)
<span class="hljs-comment">// Vector(chase, mix, fantasy, afford, sweet, awake, ozone, amazing, math, swap, announce, orange, debate, skirt, slow, intact, position, loud, better, tired, review, angle, elder, vacuum)</span>
<span class="hljs-comment">// Vector(seek, gown, twenty, pelican, undo, link, whisper, leg, sand, cloud, note, sail, same, glass, appear, slow, elegant, issue, trophy, rude, useful, begin, robot, multiply)</span>
</code></pre>
<p>Now that we have a <code>MnemonicCode</code> that was securely generated, we need to now create <code>KeyManagerParams</code> which tells us how to generate
generate specific kinds of addresses for wallets.</p>
@ -99,7 +99,7 @@ generate specific kinds of addresses for wallets.</p>
<pre><code class="hljs css language-scala"><span class="hljs-comment">//this will create a temp directory with the prefix &#x27;key-manager-example` that will</span>
<span class="hljs-comment">//have a file in it called &quot;encrypted-bitcoin-s-seed.json&quot;</span>
<span class="hljs-keyword">val</span> seedPath = <span class="hljs-type">Files</span>.createTempDirectory(<span class="hljs-string">&quot;key-manager-example&quot;</span>).resolve(<span class="hljs-type">WalletStorage</span>.<span class="hljs-type">ENCRYPTED_SEED_FILE_NAME</span>)
<span class="hljs-comment">// seedPath: Path = /tmp/key-manager-example5198059203984621504/encrypted-bitcoin-s-seed.json</span>
<span class="hljs-comment">// seedPath: Path = /tmp/key-manager-example1821734490169620288/encrypted-bitcoin-s-seed.json</span>
<span class="hljs-comment">//let&#x27;s create a native segwit key manager</span>
<span class="hljs-keyword">val</span> purpose = <span class="hljs-type">HDPurposes</span>.<span class="hljs-type">SegWit</span>
@ -110,19 +110,19 @@ generate specific kinds of addresses for wallets.</p>
<span class="hljs-comment">// network: RegTest.type = RegTest</span>
<span class="hljs-keyword">val</span> kmParams = <span class="hljs-type">KeyManagerParams</span>(seedPath, purpose, network)
<span class="hljs-comment">// kmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example5198059203984621504/encrypted-bitcoin-s-seed.json,m/84&#x27;,RegTest)</span>
<span class="hljs-comment">// kmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example1821734490169620288/encrypted-bitcoin-s-seed.json,m/84&#x27;,RegTest)</span>
<span class="hljs-keyword">val</span> aesPasswordOpt = <span class="hljs-type">Some</span>(<span class="hljs-type">AesPassword</span>.fromString(<span class="hljs-string">&quot;password&quot;</span>))
<span class="hljs-comment">// aesPasswordOpt: Some[AesPassword] = Some(Masked(AesPassword))</span>
<span class="hljs-keyword">val</span> km = <span class="hljs-type">BIP39KeyManager</span>.initializeWithMnemonic(aesPasswordOpt, mnemonic, <span class="hljs-type">None</span>, kmParams)
<span class="hljs-comment">// km: Either[KeyManagerInitializeError, BIP39KeyManager] = Right(org.bitcoins.keymanager.bip39.BIP39KeyManager@2c229b62)</span>
<span class="hljs-comment">// km: Either[KeyManagerInitializeError, BIP39KeyManager] = Right(org.bitcoins.keymanager.bip39.BIP39KeyManager@37161687)</span>
<span class="hljs-keyword">val</span> rootXPub = km.right.get.getRootXPub
<span class="hljs-comment">// rootXPub: ExtPublicKey = vpub5SLqN2bLY4WeYBYKANMcwLk4WsGqboJESdwEvgxUkC1KxvpcVUnwr5zt9ZeZoqVWDQBXu1ZYcmYE6VV7PvHTtG6NSxJjnFWXJsP815vKrit</span>
<span class="hljs-comment">// rootXPub: ExtPublicKey = vpub5SLqN2bLY4WeYodx7ZuhhWSWnPGMf34mTMSrfXE3TAsVW8dV8S3F9uZE1LypjRF7F7Uyxhi3oV9Bt7mewM5D6Sz6DW5A6LbdcLhRcwFZTcq</span>
println(rootXPub)
<span class="hljs-comment">// vpub5SLqN2bLY4WeYBYKANMcwLk4WsGqboJESdwEvgxUkC1KxvpcVUnwr5zt9ZeZoqVWDQBXu1ZYcmYE6VV7PvHTtG6NSxJjnFWXJsP815vKrit</span>
<span class="hljs-comment">// vpub5SLqN2bLY4WeYodx7ZuhhWSWnPGMf34mTMSrfXE3TAsVW8dV8S3F9uZE1LypjRF7F7Uyxhi3oV9Bt7mewM5D6Sz6DW5A6LbdcLhRcwFZTcq</span>
</code></pre>
<p>Which should print something that looks like this</p>
<p><code>vpub5SLqN2bLY4WeXxMqwJHJFBEwxSscGB2uDUnsTS3edVjZEwTrQDFDNqoR2xLqARQPabGaXsHSTenTRcqm2EnB9MpuC4vSk3LqSgNmGGZtuq7</code></p>
@ -131,17 +131,17 @@ println(rootXPub)
again after initializing it once. You can use the same <code>mnemonic</code> for different networks, which you control <code>KeyManagerParams</code>.</p>
<pre><code class="hljs css language-scala"><span class="hljs-comment">//let&#x27;s create a nested segwit key manager for mainnet</span>
<span class="hljs-keyword">val</span> mainnetKmParams = <span class="hljs-type">KeyManagerParams</span>(seedPath, <span class="hljs-type">HDPurposes</span>.<span class="hljs-type">SegWit</span>, <span class="hljs-type">MainNet</span>)
<span class="hljs-comment">// mainnetKmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example5198059203984621504/encrypted-bitcoin-s-seed.json,m/84&#x27;,MainNet)</span>
<span class="hljs-comment">// mainnetKmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example1821734490169620288/encrypted-bitcoin-s-seed.json,m/84&#x27;,MainNet)</span>
<span class="hljs-comment">//we do not need to all `initializeWithMnemonic()` again as we have saved the seed to dis</span>
<span class="hljs-keyword">val</span> mainnetKeyManager = <span class="hljs-type">BIP39KeyManager</span>.fromMnemonic(mnemonic, mainnetKmParams, <span class="hljs-type">None</span>, <span class="hljs-type">Instant</span>.now)
<span class="hljs-comment">// mainnetKeyManager: BIP39KeyManager = org.bitcoins.keymanager.bip39.BIP39KeyManager@16d5d6f0</span>
<span class="hljs-comment">// mainnetKeyManager: BIP39KeyManager = org.bitcoins.keymanager.bip39.BIP39KeyManager@2ad815a1</span>
<span class="hljs-keyword">val</span> mainnetXpub = mainnetKeyManager.getRootXPub
<span class="hljs-comment">// mainnetXpub: ExtPublicKey = zpub6jftahH18ngZwNJnVoW7mh85CjrdNHGE76284GY2GDWrBL5XW7TCLLdSEPUuoU7BqxektuwnTQxRddwNGhwX5CpmvK6S7tnUPmdhZKMnVzK</span>
<span class="hljs-comment">// mainnetXpub: ExtPublicKey = zpub6jftahH18ngZwzQRT14CXrpXUFr9RX2m7oXjo6oayCP1iXtQ94hVeABn6ApAj3rnsfxCxc6He8ZPRGDup8jGHPiVgrrrRysahEx1BKMbVcn</span>
println(mainnetXpub)
<span class="hljs-comment">// zpub6jftahH18ngZwNJnVoW7mh85CjrdNHGE76284GY2GDWrBL5XW7TCLLdSEPUuoU7BqxektuwnTQxRddwNGhwX5CpmvK6S7tnUPmdhZKMnVzK</span>
<span class="hljs-comment">// zpub6jftahH18ngZwzQRT14CXrpXUFr9RX2m7oXjo6oayCP1iXtQ94hVeABn6ApAj3rnsfxCxc6He8ZPRGDup8jGHPiVgrrrRysahEx1BKMbVcn</span>
</code></pre>
<p>Which gives us something that looks like this</p>
<p><code>zpub6jftahH18ngZw98KGjRo5XcxeKTQ2eztsvskb1dC9XF5TLimQquTs6Ry7nBBA425D9joXmfgJJCexmJ1u2SELJZJfRi95gcnXadLpZzYb5c</code></p>

22
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View file

@ -77,14 +77,14 @@
<span class="hljs-comment">//get 256 bits of random entropy</span>
<span class="hljs-keyword">val</span> entropy = <span class="hljs-type">MnemonicCode</span>.getEntropy256Bits
<span class="hljs-comment">// entropy: scodec.bits.BitVector = BitVector(256 bits, 0x26b1c14c023dba2067a03e891b68254de38595730baca8708456715b881191d7)</span>
<span class="hljs-comment">// entropy: scodec.bits.BitVector = BitVector(256 bits, 0xc30ca7acd12ecf043ea3fabf257e5adf1beec5c2a661478ed7a3de7efe28aecc)</span>
<span class="hljs-keyword">val</span> mnemonic = <span class="hljs-type">MnemonicCode</span>.fromEntropy(entropy)
<span class="hljs-comment">// mnemonic: MnemonicCode = Masked(MnemonicCodeImpl)</span>
<span class="hljs-comment">//you can print that mnemonic seed with this</span>
println(mnemonic.words)
<span class="hljs-comment">// Vector(chase, mix, fantasy, afford, sweet, awake, ozone, amazing, math, swap, announce, orange, debate, skirt, slow, intact, position, loud, better, tired, review, angle, elder, vacuum)</span>
<span class="hljs-comment">// Vector(seek, gown, twenty, pelican, undo, link, whisper, leg, sand, cloud, note, sail, same, glass, appear, slow, elegant, issue, trophy, rude, useful, begin, robot, multiply)</span>
</code></pre>
<p>Now that we have a <code>MnemonicCode</code> that was securely generated, we need to now create <code>KeyManagerParams</code> which tells us how to generate
generate specific kinds of addresses for wallets.</p>
@ -99,7 +99,7 @@ generate specific kinds of addresses for wallets.</p>
<pre><code class="hljs css language-scala"><span class="hljs-comment">//this will create a temp directory with the prefix &#x27;key-manager-example` that will</span>
<span class="hljs-comment">//have a file in it called &quot;encrypted-bitcoin-s-seed.json&quot;</span>
<span class="hljs-keyword">val</span> seedPath = <span class="hljs-type">Files</span>.createTempDirectory(<span class="hljs-string">&quot;key-manager-example&quot;</span>).resolve(<span class="hljs-type">WalletStorage</span>.<span class="hljs-type">ENCRYPTED_SEED_FILE_NAME</span>)
<span class="hljs-comment">// seedPath: Path = /tmp/key-manager-example5198059203984621504/encrypted-bitcoin-s-seed.json</span>
<span class="hljs-comment">// seedPath: Path = /tmp/key-manager-example1821734490169620288/encrypted-bitcoin-s-seed.json</span>
<span class="hljs-comment">//let&#x27;s create a native segwit key manager</span>
<span class="hljs-keyword">val</span> purpose = <span class="hljs-type">HDPurposes</span>.<span class="hljs-type">SegWit</span>
@ -110,19 +110,19 @@ generate specific kinds of addresses for wallets.</p>
<span class="hljs-comment">// network: RegTest.type = RegTest</span>
<span class="hljs-keyword">val</span> kmParams = <span class="hljs-type">KeyManagerParams</span>(seedPath, purpose, network)
<span class="hljs-comment">// kmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example5198059203984621504/encrypted-bitcoin-s-seed.json,m/84&#x27;,RegTest)</span>
<span class="hljs-comment">// kmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example1821734490169620288/encrypted-bitcoin-s-seed.json,m/84&#x27;,RegTest)</span>
<span class="hljs-keyword">val</span> aesPasswordOpt = <span class="hljs-type">Some</span>(<span class="hljs-type">AesPassword</span>.fromString(<span class="hljs-string">&quot;password&quot;</span>))
<span class="hljs-comment">// aesPasswordOpt: Some[AesPassword] = Some(Masked(AesPassword))</span>
<span class="hljs-keyword">val</span> km = <span class="hljs-type">BIP39KeyManager</span>.initializeWithMnemonic(aesPasswordOpt, mnemonic, <span class="hljs-type">None</span>, kmParams)
<span class="hljs-comment">// km: Either[KeyManagerInitializeError, BIP39KeyManager] = Right(org.bitcoins.keymanager.bip39.BIP39KeyManager@2c229b62)</span>
<span class="hljs-comment">// km: Either[KeyManagerInitializeError, BIP39KeyManager] = Right(org.bitcoins.keymanager.bip39.BIP39KeyManager@37161687)</span>
<span class="hljs-keyword">val</span> rootXPub = km.right.get.getRootXPub
<span class="hljs-comment">// rootXPub: ExtPublicKey = vpub5SLqN2bLY4WeYBYKANMcwLk4WsGqboJESdwEvgxUkC1KxvpcVUnwr5zt9ZeZoqVWDQBXu1ZYcmYE6VV7PvHTtG6NSxJjnFWXJsP815vKrit</span>
<span class="hljs-comment">// rootXPub: ExtPublicKey = vpub5SLqN2bLY4WeYodx7ZuhhWSWnPGMf34mTMSrfXE3TAsVW8dV8S3F9uZE1LypjRF7F7Uyxhi3oV9Bt7mewM5D6Sz6DW5A6LbdcLhRcwFZTcq</span>
println(rootXPub)
<span class="hljs-comment">// vpub5SLqN2bLY4WeYBYKANMcwLk4WsGqboJESdwEvgxUkC1KxvpcVUnwr5zt9ZeZoqVWDQBXu1ZYcmYE6VV7PvHTtG6NSxJjnFWXJsP815vKrit</span>
<span class="hljs-comment">// vpub5SLqN2bLY4WeYodx7ZuhhWSWnPGMf34mTMSrfXE3TAsVW8dV8S3F9uZE1LypjRF7F7Uyxhi3oV9Bt7mewM5D6Sz6DW5A6LbdcLhRcwFZTcq</span>
</code></pre>
<p>Which should print something that looks like this</p>
<p><code>vpub5SLqN2bLY4WeXxMqwJHJFBEwxSscGB2uDUnsTS3edVjZEwTrQDFDNqoR2xLqARQPabGaXsHSTenTRcqm2EnB9MpuC4vSk3LqSgNmGGZtuq7</code></p>
@ -131,17 +131,17 @@ println(rootXPub)
again after initializing it once. You can use the same <code>mnemonic</code> for different networks, which you control <code>KeyManagerParams</code>.</p>
<pre><code class="hljs css language-scala"><span class="hljs-comment">//let&#x27;s create a nested segwit key manager for mainnet</span>
<span class="hljs-keyword">val</span> mainnetKmParams = <span class="hljs-type">KeyManagerParams</span>(seedPath, <span class="hljs-type">HDPurposes</span>.<span class="hljs-type">SegWit</span>, <span class="hljs-type">MainNet</span>)
<span class="hljs-comment">// mainnetKmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example5198059203984621504/encrypted-bitcoin-s-seed.json,m/84&#x27;,MainNet)</span>
<span class="hljs-comment">// mainnetKmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example1821734490169620288/encrypted-bitcoin-s-seed.json,m/84&#x27;,MainNet)</span>
<span class="hljs-comment">//we do not need to all `initializeWithMnemonic()` again as we have saved the seed to dis</span>
<span class="hljs-keyword">val</span> mainnetKeyManager = <span class="hljs-type">BIP39KeyManager</span>.fromMnemonic(mnemonic, mainnetKmParams, <span class="hljs-type">None</span>, <span class="hljs-type">Instant</span>.now)
<span class="hljs-comment">// mainnetKeyManager: BIP39KeyManager = org.bitcoins.keymanager.bip39.BIP39KeyManager@16d5d6f0</span>
<span class="hljs-comment">// mainnetKeyManager: BIP39KeyManager = org.bitcoins.keymanager.bip39.BIP39KeyManager@2ad815a1</span>
<span class="hljs-keyword">val</span> mainnetXpub = mainnetKeyManager.getRootXPub
<span class="hljs-comment">// mainnetXpub: ExtPublicKey = zpub6jftahH18ngZwNJnVoW7mh85CjrdNHGE76284GY2GDWrBL5XW7TCLLdSEPUuoU7BqxektuwnTQxRddwNGhwX5CpmvK6S7tnUPmdhZKMnVzK</span>
<span class="hljs-comment">// mainnetXpub: ExtPublicKey = zpub6jftahH18ngZwzQRT14CXrpXUFr9RX2m7oXjo6oayCP1iXtQ94hVeABn6ApAj3rnsfxCxc6He8ZPRGDup8jGHPiVgrrrRysahEx1BKMbVcn</span>
println(mainnetXpub)
<span class="hljs-comment">// zpub6jftahH18ngZwNJnVoW7mh85CjrdNHGE76284GY2GDWrBL5XW7TCLLdSEPUuoU7BqxektuwnTQxRddwNGhwX5CpmvK6S7tnUPmdhZKMnVzK</span>
<span class="hljs-comment">// zpub6jftahH18ngZwzQRT14CXrpXUFr9RX2m7oXjo6oayCP1iXtQ94hVeABn6ApAj3rnsfxCxc6He8ZPRGDup8jGHPiVgrrrRysahEx1BKMbVcn</span>
</code></pre>
<p>Which gives us something that looks like this</p>
<p><code>zpub6jftahH18ngZw98KGjRo5XcxeKTQ2eztsvskb1dC9XF5TLimQquTs6Ry7nBBA425D9joXmfgJJCexmJ1u2SELJZJfRi95gcnXadLpZzYb5c</code></p>

4
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View file

@ -114,12 +114,12 @@ println(<span class="hljs-string">s&quot;Verified with NativeSecp256k1 again=<sp
<pre><code class="hljs css language-scala"><span class="hljs-keyword">val</span> privKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
<span class="hljs-comment">// privKey: ECPrivateKey = Masked(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> publicKey = privKey.publicKeyWithBouncyCastle
<span class="hljs-comment">// publicKey: ECPublicKey = ECPublicKey(02d33d9866d080b375f3f7aff868e078b0f391d4f252ba3bd7f8d95c09e9cc9ee7)</span>
<span class="hljs-comment">// publicKey: ECPublicKey = ECPublicKey(02ed9c3f9a3088e119d37c9da17a6b0b100f296818cf79c9a25ec143a174e6130a)</span>
<span class="hljs-keyword">val</span> dataToSign = <span class="hljs-type">DoubleSha256Digest</span>.empty
<span class="hljs-comment">// dataToSign: DoubleSha256Digest = DoubleSha256Digest(0000000000000000000000000000000000000000000000000000000000000000)</span>
<span class="hljs-keyword">val</span> signature = privKey.signWithBouncyCastle(dataToSign.bytes)
<span class="hljs-comment">// signature: ECDigitalSignature = ECDigitalSignature(30450221009805feeeca48e953ba0a67132912b46d46d7f0ebc66f25beb6e5179934085bc7022006820578d66edfee974d80e1453a74dc947ef01b621eba096c970bc4b3bce7d0)</span>
<span class="hljs-comment">// signature: ECDigitalSignature = ECDigitalSignature(304402201b6a17360a66afd7e9c874d982e8b53fb3a4f0604798df6445ac74de219dcf890220460506600a38ba439f4adaf73b312f2fa24b39bcbabcd3a1c5f8676f52c87e06)</span>
<span class="hljs-keyword">val</span> verified = publicKey.verifyWithBouncyCastle(dataToSign.bytes, signature)
<span class="hljs-comment">// verified: Boolean = true</span>

4
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View file

@ -114,12 +114,12 @@ println(<span class="hljs-string">s&quot;Verified with NativeSecp256k1 again=<sp
<pre><code class="hljs css language-scala"><span class="hljs-keyword">val</span> privKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
<span class="hljs-comment">// privKey: ECPrivateKey = Masked(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> publicKey = privKey.publicKeyWithBouncyCastle
<span class="hljs-comment">// publicKey: ECPublicKey = ECPublicKey(02d33d9866d080b375f3f7aff868e078b0f391d4f252ba3bd7f8d95c09e9cc9ee7)</span>
<span class="hljs-comment">// publicKey: ECPublicKey = ECPublicKey(02ed9c3f9a3088e119d37c9da17a6b0b100f296818cf79c9a25ec143a174e6130a)</span>
<span class="hljs-keyword">val</span> dataToSign = <span class="hljs-type">DoubleSha256Digest</span>.empty
<span class="hljs-comment">// dataToSign: DoubleSha256Digest = DoubleSha256Digest(0000000000000000000000000000000000000000000000000000000000000000)</span>
<span class="hljs-keyword">val</span> signature = privKey.signWithBouncyCastle(dataToSign.bytes)
<span class="hljs-comment">// signature: ECDigitalSignature = ECDigitalSignature(30450221009805feeeca48e953ba0a67132912b46d46d7f0ebc66f25beb6e5179934085bc7022006820578d66edfee974d80e1453a74dc947ef01b621eba096c970bc4b3bce7d0)</span>
<span class="hljs-comment">// signature: ECDigitalSignature = ECDigitalSignature(304402201b6a17360a66afd7e9c874d982e8b53fb3a4f0604798df6445ac74de219dcf890220460506600a38ba439f4adaf73b312f2fa24b39bcbabcd3a1c5f8676f52c87e06)</span>
<span class="hljs-keyword">val</span> verified = publicKey.verifyWithBouncyCastle(dataToSign.bytes, signature)
<span class="hljs-comment">// verified: Boolean = true</span>