Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #19587
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
750ms
Block → Canton commit
750ms
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.
0xf8ac80858bb2c970088259a29423e5dee888c67549a750290c1ba14a94c855229a80b84440c10f190000000000000000000000009814757293b3d60846ef2e341fb8f92fc94d408200000000000000000000000000000000000000000000003635c9adc5dea00000831c946da02e639fb0282195730e6929f32892a48b8c1d2328f858d2d7e3b74de579aad0bda058446caf3ad03bbb122bccdd5fb974155c2bed78e2cab8b68e428d7841aff9f2