Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #219190
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.
0x02f8b3830e4a250a843b9aca0e843b9aca0e8301668194ebf71bba9cc0625cb11897ad6ed94f918dd57c5180b84440c10f19000000000000000000000000d10520152d1bab6f7dd870eaa8d1d6ed52bd90cc00000000000000000000000000000000000000000000000000000000285d284bc080a0eb502b4f47917f03d3f0b2faf7c824b3fb35ea19e214fbeafd6b4086eca23535a0015fd658005407ab4953ddff2e07bf632724952f65b0a4dde01ae6fdc82fd37d