Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #150451
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
634ms
Block → Canton commit
634ms
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.
0xf8ac8189843e95ba8e827e9094babc76086e9cfaae01871994700b62fd346073d280b844a9059cbb0000000000000000000000009e5c81b3255fbdd2e5fcce5def46cc86de1856e700000000000000000000000000000000000000000000021e19e0c9bab2400000831c946da0190f252444839da3ba1a087de1bf7b2ae76f7b94f8a9a72097156376e5990baea06022719ff9f1a3a6f1dde4fb2dc21d98e2247f385b57ea4397f72f0a8433dc56