Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #21978
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
787ms
Block → Canton commit
787ms
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.
0xf88c1a8503cae59862830178c1944e812594e745181497b37ae8c602674ec8b86f8580a46a627842000000000000000000000000e1f3b9caf24b09515bf96bb6154ffee526269e63831c946ea0bb728cb29a172bca73130d7b39ceb0015d5a1f0363d8e0920954e0d201fd1cbba02b44d878befc61d55e592303434fe32e13a0f5388a3f9484bca4f2ee31fdc0e9