Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #9156
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
639ms
Block → Canton commit
639ms
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.
0x02f879830e4a25821a2e851ee02663fe851ee026640682520894c5e869239e78d5b8ec18398c3d8ec65fc1509792880de0b6b3a764000080c001a09149d3093abe2a2122104c0aacfd5c9faf790d666373b3a1996391823a121e99a013e2f06f4f6d44eb5995b153f546b149029e7e2ee713b7a6db288a9e5af7cbdd