Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199177
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.
0x02f891830e4a2502843b9aca0e843b9aca0e826f00944d5289984c9650218b54d50d0c1632a7b892820180a41003e2d20000000000000000000000000000000000000000000000000000000000000002c080a0fc0b8b12b839a8d72b2a3e8d45002f6f27b1a11a268e332f88857355fc79ac9ba030dd4b33d8d99c0e989a892485aa0123d4affd9acfd3c9471def6109266a0a67