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BIP341: add testnet3 parameters

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Anthony Towns 2021-04-08 18:31:04 +10:00
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@ -298,7 +298,7 @@ This BIP is deployed concurrently with [[bip-0342.mediawiki|BIP342]].
For Bitcoin signet, these BIPs are always active.
For Bitcoin mainnet, these BIPs will be deployed by "version bits" with the name "taproot" and bit 2, using [[bip-0009.mediawiki|BIP9]] modified to use a lower threshold, with an additional ''min_activation_height'' parameter and replacing the state transition logic for the DEFINED, STARTED and LOCKED_IN states as follows:
For Bitcoin mainnet and testnet3, these BIPs will be deployed by "version bits" with the name "taproot" and bit 2, using [[bip-0009.mediawiki|BIP9]] modified to use a lower threshold, with an additional ''min_activation_height'' parameter and replacing the state transition logic for the DEFINED, STARTED and LOCKED_IN states as follows:
case DEFINED:
if (GetMedianTimePast(block.parent) >= starttime) {
@ -330,6 +330,8 @@ For Bitcoin mainnet, these BIPs will be deployed by "version bits" with the name
For Bitcoin mainnet, the starttime is epoch timestamp 1619222400 (midnight 24 April 2021 UTC), timeout is epoch timestamp 1628640000 (midnight 11 August 2021 UTC), the threshold is 1815 blocks (90%) instead of 1916 blocks (95%), and the min_activation_height is block 709632 (expected approximately 12 November 2021).
For Bitcoin testnet3, the starttime is epoch timestamp 1619222400 (midnight 24 April 2021 UTC), timeout is epoch timestamp 1628640000 (midnight 11 August 2021 UTC), the threshold is 1512 blocks (75%), and the min_activation_height is block 0.
== Backwards compatibility ==
As a soft fork, older software will continue to operate without modification.
Non-upgraded nodes, however, will consider all SegWit version 1 witness programs as anyone-can-spend scripts.