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glossary: move definition of chain_hash to BOLT #0

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This commit modifies the glossary to add a new entry which defines the
usage of `chain_hash` throughout the remainder of the documents.
Additionally, we now also specify which chain hash we expect for
Bitcoin within the glossary.

This commit also modifies BOLT #2 and #7 to omit the definition of the
expected `chain_hash` value for Bitcoin.
This commit is contained in:
Olaoluwa Osuntokun 2017-07-24 12:44:14 -07:00 committed by Rusty Russell
parent 956e8809d9
commit 25fc33bfbb
3 changed files with 12 additions and 5 deletions
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11
00-introduction.md
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@ -110,6 +110,17 @@ This is version 0.
MUST support the feature in question, while odd numbers indicate
that the feature MAY be disregarded by the other endpoint.
* `chain_hash`:
* Used in several of the BOLT documents, and denotes the genesis hash of a
target blockchain. This allows nodes to create and reference channels on
several blockchains. Nodes are to ignore any messages which reference a
`chain_hash` that are unknown to them.
For the main chain Bitcoin blockchain, the `chain_hash` value MUST be
(encoded in hex):
`000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f`.
## Theme Song

4
02-peer-protocol.md
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@ -128,9 +128,7 @@ FIXME: Describe Dangerous feature bit for larger channel amounts.
#### Requirements
A sending node MUST ensure that the `chain_hash` value identifies the chain they
they wish to open the channel within. For the Bitcoin blockchain, the
`chain_hash` value MUST be (encoded in hex):
`000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f`.
they wish to open the channel within.
A sending node MUST ensure `temporary_channel_id` is unique from any other
channel id with the same peer. The sender MUST set `funding_satoshis`

2
07-routing-gossip.md
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@ -317,8 +317,6 @@ The following table specifies the meaning of the individual bits:
The creating node MUST set `signature` to the signature of the
double-SHA256 of the entire remaining packet after `signature` using its own `node_id`.
For the Bitcoin blockchain, the `chain_hash` value MUST be (encoded in
hex): `000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f`.
The creating node MUST set `chain_hash` and `short_channel_id` to match the
32-byte hash and 8-byte channel ID that uniquely identifies the channel within
the `channel_announcement` message.