Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #54321
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
375ms
Block → Canton commit
375ms
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.
0xf8ac80858bb2c9700882c9c494beede27adc78c973ff5d41a475c07cb8601074d280b84440c10f19000000000000000000000000e9929620308267039af5b15b4cc2a7b7574577f900000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea080e748ff2d383d990e5f8fe29a6bfa5fcb1ff84135c2c1a79dc32a598fe59f75a01f8f47f3ac0b0230cf0c176c98ff3c6856c4b22f0f37d500471dc1cab32e489d