Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #178221
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
865ms
Block → Canton commit
865ms
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.
0xf8ab0a84034a62158259a294b492fe8d264c824de4aa16cbc58b444a0994ca1b80b84440c10f190000000000000000000000005090989f1b86d1bdad850fc8a8c2741b5b3052dc00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0860d884497c83c339963a54f07dedc583fc3459ad1736e06650def07415f4cdea06f5c2a301a89154e1d459128065a85a3a7048b2897f994d537e1ca29c8fd4a83