Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #154891
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
335ms
Block → Canton commit
335ms
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.
0xf88b508459682f00830178c19421a460ff7424382b46a91f5e0e452f562a6625c380a46a627842000000000000000000000000f902897291fcf18115841304b6139c4b9a1a0c26831c946da0be33b591ec22540e7fa517693278ecef4e5a1c8b789dc0b5a97d48ab6c708dafa01bd8e7226057e2a514484460ca67473476e05f68407564f92e10960a807626e4