Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #51491
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
596ms
Block → Canton commit
596ms
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.
0xf8ac228459682f0083011e39943d2a0a8ca1ebf10f223692d1b70b53f2feba1d4080b84440c10f190000000000000000000000003f30acfefe9f99428c657ab15bdf56929d1291f900000000000000000000000000000000000000000000d3c21bcecceda1000000831c946ea0371e19ea5dbafb9353c9d2d3da9d75f4c02e379799d4e3383ee8a4dc60e4a265a01da4a9fd56733d2c6839ade22628fe628d3b6e7d09d8477d9d2a36cece45c0d0