Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15509
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
699ms
Block → Canton commit
699ms
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.
0xf8ac0c850370a1cf4c827e9094f62b06aa8e2e6654ca5b97458ca087aa45d76f9880b844a9059cbb000000000000000000000000c80d487711379a625a526fd1d59768ffd7dec8df00000000000000000000000000000000000000000000021e19e0c9bab2400000831c946da0b27e2a6f9b88642f512645bf923f23d0d02fc4193f71d1b7c2790dfda2572962a03fb2dec07f5e08290435ae76d29a36b921d7cec47c8680a45d6b3f31033ffb8d