Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #54887
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
415ms
Block → Canton commit
415ms
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.
0xf8ac03858bb2c970088259a29451be323af717fdc9555254a39fe99a0cbce167ed80b84440c10f190000000000000000000000003882bf8f373de39c4c3c88bf866d8661f8bf067f00000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0b76236ef9a6e4c27e1ff594f3787fda0876d57af1fec310c16a66b2b39c0b01ea017023d572227888b5c4324658b6d0d04048dffe5c6ae8d182dded8c8fd6b623a