Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #188345
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.
0xf8ac12858bb2c970088259a294a88dda1ea7515e8a9c1b327af548c85e79ed1b3480b84440c10f19000000000000000000000000468d234201467650bac7bb960dcb0ac4763f5dde00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0f42fd5ca32dde634d3c9c44046214ec6f10a3b23df697dc14bf7a134c78c4e86a010827faa4597121906bf66ffaad019f750ee30e6990e3b0b910e8f9f1abdbdde