Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #991
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
359ms
Block → Canton commit
359ms
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.
0x02f879830e4a258201c185016a7ae7b785016a7ae7bf8252089429d0330feb253693f85928c2b0b130df3b99dd6d880de0b6b3a764000080c080a0d7b6f9cbfc198f7172b506b0875be18035f3f2decf27f5c550f732d92c34cfe0a0195fd99259961c8fab679a5ad20a731420c4dec702c8e38540a10fd53a798f31