Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #177987
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
646ms
Block → Canton commit
646ms
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.
0xf8ac0d8520a53f60138259a294b492fe8d264c824de4aa16cbc58b444a0994ca1b80b84440c10f1900000000000000000000000071a691c77b8d328593fb6e7e8740636edff95b7300000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea053bc572dcf9d08c975f2f961919e46f4455ad80d50c82839398efceae5bea013a04ac17974211ce814cfb886b60df353d153837c0bf0162f2588874b889c9e88ed