Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #149840
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
454ms
Block → Canton commit
454ms
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.
0x02f891830e4a2502843b9aca0e843b9aca0e826f009405040e7c929021dcc40a3c4ae724452f93f1e3bb80a41003e2d20000000000000000000000000000000000000000000000000000000000000015c080a05097462650fbbde9e65a5533d542f4740641fbcf20f3b769bfba02147c5ce82ea01731f8d9cca8d385f86f4950d794793ad4612719b56d97d6a96c9e3827aa8a71