Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #156278
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
645ms
Block → Canton commit
645ms
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.
0xf8ac0a8502cb4178088259a294b492fe8d264c824de4aa16cbc58b444a0994ca1b80b84440c10f19000000000000000000000000164bf17a51a828f6f27215bd69f401137f94ce1300000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0c1bfaf4614bfad6e16e138616ea497e0fc94dddd110d37d1aff8fc2a91c1b840a03bff95ac6bfc646105c1e54b35af077ab80512a09181cee7b77aafaaded00223