Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #120321
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
555ms
Block → Canton commit
555ms
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.
0x02f874830e4a250a843b9aca0e843b9aca0e8252089432e9c97a4c03ea38a22a98d5251a909fd123dd5d870173fbbbb6900080c080a037bf8cd6148baa4a9bfa0e1812964a680e4057f1e4b5b8dada8e17e2d09fa939a047f059f7d718600ea4a21323bc209616fe95928a01fe3585ee2046527584a323