Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #181227
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
308ms
Block → Canton commit
308ms
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.
0xf86c11831a5e0a825208943520c537435261a91d5252a0e6e3bbd13997f0d587038d7ea4c6800080831c946ea00ceeee2a46a53ffd1fe9fd2d559405778b3df9bb24b8e81f34d2f4abf14cb24ba06b5ea80b41c649e6c6a8d5a302360f81fcc59000f9f0979be33b316b852080e4