Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #21951
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
368ms
Block → Canton commit
368ms
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.
0xf88c1b850370a1cf4c830178b594f585ec4edf0cd42cd1467a6251c43fc32747215080a46a627842000000000000000000000000e10207cc78c1d960a8bc263e00ad33553d94c89c831c946ea02229780635ac11515f9ee675ba0444384e4194408e5d794db35c56725cd06574a02ef78d6e929b5fb58bffe2fd28c8c2564b0a5ac0bcc3e56fedab47e26c4e61be