Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15030
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
600ms
Block → Canton commit
600ms
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.
0xf8ac80858bb2c970088259a294a88dda1ea7515e8a9c1b327af548c85e79ed1b3480b84440c10f19000000000000000000000000ec2e6e6539df8e636d714d33a8ed65bc67af2f2c00000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0a39fce5aa9006787fc76794821bbcbab1ebcef734d0bfc63e4b7d488832767f7a02fb3479f7b9bff54af72ca39a4e5bdb9c499b430e660220126e5be4d88809792