Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #155951
Measured from on-chain timestamps only: the EVM block timestamp, which the producer chose when it planned the block (whole seconds), and the record time (commit) of the Gateway_FinalizeBlock transaction; a commit that reads slightly before the block timestamp (rounding) shows as 0. The gateway-build-block external call runs inside that transaction and is not timed on its own; the import into the execution layers follows the commit and its time is not observable here, so those steps are markers without a duration.
Total
305ms
Block → Canton commit
305ms
block timestamp → record time (±1s)
Measured from on-chain timestamps: the EVM block timestamp, chosen when the producer planned the block, and the record time (commit) of the Gateway_FinalizeBlock transaction. The block timestamp is whole seconds and follows Canton's ledger time, so the span carries up to ±1s of rounding; a commit that reads slightly before the block timestamp shows as 0.
0xf88b488459682f00830178c194e666cdf570fcfd753745416628da827b7776495b80a46a627842000000000000000000000000b07bbf1999160d575b9b6f666c103fe786cbc959831c946ea067b268885c733874bd3cad69822598864f3ec865162fcf49bab4b8a8191291aea035ec06d78a834d1744e4e4ad7cf03054ed6eed8ec0590df2c1486aa2fca204bc