Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #18516
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
269ms
Block → Canton commit
269ms
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.
0xf8718201a1858bb2c9700882520894d3e980a372fce0c530d301d92e693c5811f287c7880de0b6b3a764000080831c946ea06a66f3db9e82503ae53bb933ba25903cc9ba92af03690dc4e67ea4dbda3363f6a07f2b5902ae5b65f1fe7ff91b2ca4318e8875bee1540f22cd19f13cdc3f50e82e