Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #16978
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
4.55s
Block → Canton commit
4.55s
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.
0xf86f29858bb2c97008825208949ee9e8bf6cb383049feb4d99a71ec75d32734f38880de0b6b3a764000080831c946da0ffcdd4c154095d21e20c06ea60a7742e8be4a5781bf3300d63c38ffcfcaaa50ea04b69b0976bb41d823a328d68e3475798fb12a0eea14c8886d2200837dfccf098