Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8178
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
989ms
Block → Canton commit
989ms
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.
0x02f879830e4a258216ec851d67c309e6851d67c309ee82520894e6b034c05e5f3cb0665c68e425f4f14e57ef4930880de0b6b3a764000080c001a0ce3a31db514dfc90ee113bd3640aede5fc9b00d38aea27d02fe710d96d36d74aa060c857af615c555f6e5ec6fcb7caa7d5a054813fdf2b50938d767ef72d25f7ef