Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #156242
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
305ms
Block → Canton commit
305ms
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.
0xf88a478459682f00830178c1949b87d21db36d67b7c75f99d880fe41d28159c6e880a46a627842000000000000000000000000ac9b4e83ad3058d1093dd74dbfc71d1165f64f02831c946da0a7615dd5f2be58d3ecbedf1725aa275c61e90562f5e558d98e9cee1b6795d8e59f28c081200c2ba41555c9cd1037619ee55c9ba53a3588c3301ef4aebecbea4a