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| author | Paul Sztorc <psztorc01@gmail.com> | 2018-04-23 20:50:11 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-04-23 20:50:11 -0400 |
| commit | 485b1318bd4a6f2e1378add714ce7af2cffee87b (patch) | |
| tree | 84d34c5b546a0c35d8cf19a9a5031819398a8caf | |
| parent | 5353f9ea23bb781672d90dccb0b11fdefcde8237 (diff) | |
| download | bips-485b1318bd4a6f2e1378add714ce7af2cffee87b.tar.xz | |
m7 op return update
This has been right in the code, but I kept forgetting to update the BIP.
| -rw-r--r-- | bip-blind-merged-mining.mediawiki | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/bip-blind-merged-mining.mediawiki b/bip-blind-merged-mining.mediawiki index 29a735c..513a4b7 100644 --- a/bip-blind-merged-mining.mediawiki +++ b/bip-blind-merged-mining.mediawiki @@ -85,12 +85,12 @@ Mainchain nodes are going to need this data later, so it must be easy to find. W ==== M7 -- "Blind-Mine the Sidechain(s)" ==== -Thus, (for n sidechains) we have a coinbase output with: +Thus, (for n sidechains) we have a coinbase output with multiple OP_RETURNs (we've changed the tx-standardness policy to allow multiple OP_RETURNs): 1-byte - OP_RETURN (0x6a) - 1-byte - Push the following (4+(n*35)) bytes (0x??) + 1-byte - Push the following 39 bytes (0x27) 4-byte - Message header (0xD3407053) - (n*(32+5))-byte - A sequence of bytes, of the three Mini-Header items (h*, prevBlockRef, ChainIndex). + 37-byte - A sequence of bytes, of the three Mini-Header items (h*, prevBlockRef, ChainIndex). ( We assume that 5 bytes are used for the Critical Data bytes (non h* parts of the Sidechain Mini-Header). For 256 sidechains, a total of 9,478 bytes [1+1+4+256\*(32+5)] are required, conveniently just below the 10 KB scriptPubKey size limit.) |