Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #16515
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
479ms
Block → Canton commit
479ms
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.
0xf8ac80858bb2c970088259839423e5dee888c67549a750290c1ba14a94c855229a80b84440c10f190000000000000000000000007a8e6200ee58d9fea0c60b9ec4bf0a4e5b9e7e1b00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea065e3e90d4bec969df09ae020bf4a7abb35f61090b643df449551ad9d7b529eeda038943162f3179d60ddf35a16d75b8b4a4d2a6f0aca26f2882ebd3a845cfbcc29