Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #178142
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
665ms
Block → Canton commit
665ms
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.
0xf88a0283880cb2830186a0940a812ffd86c6727eb77c62f109454a5a9e558ace80a460fe47b1000000000000000000000000000000000000000000000000000000000000002a831c946ea0ebc0cfd224961a396519bf48e216732dffa2ec98556894b12b7ac59d2bb03cc4a040b51439acfdc18764556851bda5cd853c830a9d59f74fbd4e431a29689bd9e2