Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12556
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
990ms
Block → Canton commit
990ms
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.
0x02f879830e4a2582234185746a52880085746a52880882520894e71083e6b531f38eb8144d065ae6118d597c16b5880de0b6b3a764000080c001a06664e165d7870695ab2acf31d9fa4752d993427adf3f83e52081ec0014c3cb37a0689294a6a3ea7e40ff49baf0f1f507e2aca0114ce7b02590afca7b57c7e277c8