Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #150838
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
555ms
Block → Canton commit
555ms
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.
0x02f874830e4a2509843b9aca0e843b9aca0e82520894c5c34efb2c94ecef49b7f0f85419d1df2559c11b87021c3d66ff200080c080a0e7b0c12a2caf4f985a04a730c4f8e53896e39bdc50a2853e23794e8be603ce00a011a76556800f761da65cf3d699bd00c490a056e03f3f4673e358ef56daa92521