Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #149557
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
505ms
Block → Canton commit
505ms
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.
0x02f8b3830e4a2507843b9aca0e843b9aca0e8301668194e471945ef56d1124a757c32625cafd03a52035e280b84440c10f19000000000000000000000000a37972472680fff7b6bfd595a3ef4399d7eee7c400000000000000000000000000000000000000000000000000000000a3797247c080a09350c94935b557290b820f2e708098deacdd21c584f3215890214d35b89e0aa1a059119fbb615ab77a9f672bded689031295026c13c311b7baf64518d0c2aae49d