Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4957
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
409ms
Block → Canton commit
409ms
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.
0xf8ac048519bacaa8af827e90945d68f191f0ffb758958fd5c22d77aceaa248633f80b844a9059cbb000000000000000000000000cbaee07bd0f0039184b0c4237cbd1b153f5be40600000000000000000000000000000000000000000000021e19e0c9bab2400000831c946da021ce6dd0e5e07578931d5054457b799968bff6e59b4acba509ed56e06825e08da05dae33f10668e5eea3ec825beede469dccadf457ba0ad0d9dfff499ed50d4ef6