Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #171549
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
555ms
Block → Canton commit
555ms
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.
0x02f8b2830e4a2505843b9aca0e843b9aca0e82cb72942eb53fe9dc86a88ea18e4f57d6f73ff9c735c34180b844a9059cbb000000000000000000000000a136442909ae13c7386c7333f412d00d440f97c40000000000000000000000000000000000000000000000008ac7230489e80000c080a0a0181ef3c08408cfa35385d290492fe7d0b21216c179806646f4ba0ba285ca2ca008e25dc237d15d0fa96b06e98222426a2683af4ef3f89590035c221bea561871