Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #7540
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
620ms
Block → Canton commit
620ms
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.
0x02f879830e4a258214da85188122883f85188122884782520894ea3a54b28fdd497c2861ba0ef3827d4bc324ceae880de0b6b3a764000080c001a0ba4192315ae9595f3c4d8ef66b462949e9310f65ddf8af65c9f3986d12dd855aa03d305e01bcefc341d2685f50bc9b32819002a068b0ede532d09572aef1ccb2d2