Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199222
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
737ms
Block → Canton commit
737ms
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.
0x02f876830e4a25820464843b9aca0e843b9aca0e825208940ce81bef69cf2cda996d21677af651f5d764452c870e35fa931a000080c080a0eb3e0b519bcbf592df21833e5033d7f2918678e9f42594dca26535513e8c955ba0651dbfd18bbfdb78b14c280021fc29f0ce52fdfd4bdf761aa7dcd32f92daf31f