Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #178316
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
405ms
Block → Canton commit
405ms
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.
0x02f86f830e4a25821e49849a7ec80384d61992038252089427ab051371054dcbb4c0aee315d9507b77c049868080c080a0a0d1b4f2fd9e3a2dd97bd71e94bb1bddd35b8ea58d7285448b845265a58454b1a05285efb8da3595d4a20b2bcf7e014201fe2c803ee06a2be9fb7da6e0db30497e