Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8254
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
199ms
Block → Canton commit
199ms
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.
0x02f8b3830e4a2502843b9aca0084b2d05e0083030d40947b806d2760bcf9ffdac8a5d054d998692adfb27980b844168d7c4700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001c001a0220c8ca8270dd1ab9a43b4eb03df3eebd368e634aa3d92353c4d9ea3915a7033a07dff77770b4ff0992eb79d5bc3f7d39eeb3869cc3bab59e0c6d3760e9e1dd8b0