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Diffstat (limited to 'bip-0141.mediawiki')
| -rw-r--r-- | bip-0141.mediawiki | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/bip-0141.mediawiki b/bip-0141.mediawiki index 09676f8..e10ff53 100644 --- a/bip-0141.mediawiki +++ b/bip-0141.mediawiki @@ -120,9 +120,11 @@ The new rule is ''block cost'' ≤ 4,000,000. Sigops per block is currently limited to 20,000. We change this restriction as follows: -''Sigop cost'' is defined. The cost of a sigop in traditional script is 4, while the cost of a sigop in witness program is 1. +Sigops in the current pubkey script, signature script, and P2SH check script are counted at 4 times their previous value. +The sigop limit is likewise quadrupled to ≤ 80,000. -The new rule is total ''sigop cost'' ≤ 80,000. +In addition, opcodes within the witness program are counted identical to as previously within the P2SH check script. +That is, CHECKSIG is counted as only 1 sigop in a witness program, despite P2SH check script's CHECKSIG becoming 4 sigops with the forementioned change. == Examples == @@ -273,7 +275,7 @@ As a soft fork, older software will continue to operate without modification. N == Deployment == -This BIP will be deployed by "version bits" BIP9 using bit TBD. +This BIP will be deployed by "version bits" BIP9 with the name "segwit" and using bit TBD. For Bitcoin mainnet, the BIP9 starttime will be midnight TBD UTC (Epoch timestamp TBD) and BIP9 timeout will be midnight TBD UTC (Epoch timestamp TBD). |