Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #149865
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
355ms
Block → Canton commit
355ms
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.
0x02f8b3830e4a2507843b9aca0e843b9aca0e8301668194d221d927af1a1a667655ad507b7060a37324fad180b84440c10f19000000000000000000000000cf2fc21915b51d40a448a364984db331b0116a6400000000000000000000000000000000000000000000000000000000cf2fc219c080a02b10aeb8831c9cac0409a332a5170e23ef8fcf00d98043a7daf58145b4b31393a078ce1f42063b9ddce97edf5a483ad4a66c98cab82caac174d85c45b8aedf2400