Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #21156
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
720ms
Block → Canton commit
720ms
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.
0xf86e02858bb2c9700882520894235dc887c81c87cfa6d8a743aa93ace7c51b3c8c87038d7ea4c6800080831c946da016cd233fb5ecbdbf7dbbe45660ba6d6628e65e0e0f5092f88ba68c1170a69ff7a0521c2c958b22fef154505a502f3aab88ecf7f9bc59a64f6f72e6fb1179560ee8