Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #255
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
229ms
Block → Canton commit
229ms
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.
0xf8ac02846116f5a183011e399427cc0241b19bfae22877e7220feb7eeb5df93d4180b84440c10f19000000000000000000000000245df8e4f06ba37efe5a78fef2adc0c138410f6f00000000000000000000000000000000000000000000d3c21bcecceda1000000831c946da0f89b0351d2f72b1fa58c4f2a892ebe5dbfebf496765461a8620d6c00831ef1d0a05487268f2185464a608a61a1b1e9b7578ce2b04840b412c9e1ae4136feec6631