Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #202977
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
637ms
Block → Canton commit
637ms
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.
0x02f874830e4a2501843b9aca0e843b9aca0e82520894d5b18a8ceab78b5111a4dd93791503ee24ce6e8f870d892cc098200080c080a0dc8b0399bfc520c9c78fc96edf427f7646b2132e4e630c831efe495ec8fb33e5a002974461ace0b45b373933df8bc6e6625f2c6885c8c4220b4b47e2c710e71260