Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12909
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
268ms
Block → Canton commit
268ms
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.
0x02f879830e4a2582248285746a52880085746a5288088252089401cf2032bd54cd50a2ff33348773196e8bb6ddea880de0b6b3a764000080c080a02a63400e69b43c256c1e4511755b50305e065cfd3d99cfe84b3210b0100a670ca0114ae0ee3ece6fbb2f291304be4ffbe25f103e8b0f06d5e71c7144dcf416a0fc