Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #17646
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
390ms
Block → Canton commit
390ms
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.
0xf87081d0858bb2c9700882520894cd52c025977e1676dc4b93c67341db7a83fbef10880de0b6b3a764000080831c946da0bf782d39ccb8bc1a3b97380e103c2fd0541db8a3e0dbea01f400e46727121bc2a06b698b6bc83c5ade61f9b7efa12cbdca391d8c0b5142d35e0e3d05a38e750045