Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #149678
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
494ms
Block → Canton commit
494ms
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.
0x02f891830e4a2502843b9aca0e843b9aca0e826f0094f367b196ea98ca9853a4a00e0dcf3a63ac2678c980a41003e2d2000000000000000000000000000000000000000000000000000000000000002ac080a0d4091abbb2f1841186d9ec15d272a2b814904383f23b95e2e2e5c735f531f5aea066526be464fa12e6f10764a014209bcd12f22446679b0188d95f6e44fe9a5335