Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #1519
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
688ms
Block → Canton commit
688ms
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.
0x02f879830e4a258203398502b1ff8e908502b1ff8e98825208946210c5ff30c265fa3363f2cce03cc7e1be6d5cb4880de0b6b3a764000080c001a0f1f14396db8516a1188368b6de85ae8c1cf031190fa729ea8baf7e65d2ad90dba06f83a31c8bb411bb42560e8645db2f2f58e44462dfeec94a27315e6d332d116a