Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #21490
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
969ms
Block → Canton commit
969ms
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.
0xf8ac80858bb2c970088259a294b778d58e24c877095693fc7800b3ee5834773d8080b84440c10f19000000000000000000000000394bfbf5bb37184ad998d9ff4c07439271ea127200000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea01cce7a19039ea7351c314646d8e840ff1729a5aba57004a2ec0353adc80b3208a0172b9e8f94ce24c89ff94d84495237c362d02be8bbe66d00c1153b2bf227ce12