Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #197918
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
647ms
Block → Canton commit
647ms
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.
0xf8ac108503a952287282598394d129219e03f0ad695dbb10182802b82adf9ab96c80b84440c10f19000000000000000000000000a934f4036000a4f928be9e16ab3fb115481e50bb00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0645c575af255e770a272d1eaf9460a7689b42a8f6ccbec1dc01acda21933191ea04419cb84cf7acb0cfb6fe0d46eb2d2170a1e989e72ce33e0663558f851a94a88