Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #55578
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
546ms
Block → Canton commit
546ms
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.
0xf8ac04858bb2c970088259a294a0809c6182efe54bed9243c93944d1041615b8f280b84440c10f19000000000000000000000000f0e7d45f3a5904bb097f1f63964745a2ee67c42800000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0c8c6b88d95c7b48af5f688bbb44a63015e84dbf4bd5c4c5636e4777d158dd091a0258424d52b2f2b9992f5198c367b2cb89946ddd5994bbeb5f821243be3529141