Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #187455
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
398ms
Block → Canton commit
398ms
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.
0x02f876830e4a258203ec843b9aca0e843b9aca0e82520894216e1fdf8a9e34f421eb8791363bd4e90e2e5288870e35fa931a000080c001a07bd115ee7d941425a29e616635cd87d5a25bde5066bfdabd80d9cbf63e4fc8b9a03f9ff1a2e6ce412eea1f4c5031912c2054c69465786dfe76cfd0dd86c955c2ef