Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199895
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.
0x02f8b3830e4a2507843b9aca0e843b9aca0e8301667594b2722ed74db8cbcfebf7ee2dee3bc6acc95d3ee580b84440c10f19000000000000000000000000e77ddbec2500ac1155c2ddbc08072c77b9d7bbc400000000000000000000000000000000000000000000000000000000e77ddbecc001a07fa4bc43041229d1ea300dcc5ac4a5c07ce9a3f2ca206ed208ea2bff1975b9a0a0514a581e425a2b1973271086e7c2c0d2a301eb669fce26d80f0be0a5c8fc15a9