Canton Updates/122015...9b12

Canton Update

Canton Ledger Transaction

Canton

This Gateway_FinalizeBlock transaction built EVM block #37,981 through the gateway-build-block external call and committed it with 5 transactions.

Block Lifecycle

block #37,981

EVM block settled on CantonGateway · Gateway_FinalizeBlock

0ms

500ms

1.0s

1.5s

2.0s

2.5s

2.6s

Block planned

Producer plans block #37981 (block timestamp)

—

Gateway_FinalizeBlock

Block timestamp → commit, incl. the gateway-build-block call for block #37981

2.1s

Committed on Canton

Participant commits update 122015af60…739b12

—

Imported to the execution layers

Importer applies block #37981 from GatewayHead

—

0ms

500ms

1.0s

1.5s

2.0s

2.5s

2.6s

EVM

Canton

External call

Total

Complete2.1s

2.1s

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.

Settled EVM Block

Block

#37,981

Block Hash

0xb04e1c7c...fd709c75

Block Timestamp

Nov 5, 2026, 20:20:52 UTC

Transactions

0x773a0a56...7274c3eb0x7f2b...1bdf → 0xd129...b96cSuccess

0x81c25361...6609f6400x72f6...06e6 → 0x235d...3c8cSuccess

Overview

Update ID

122015af60...e6739b12

Offset

121706

Record Time

Nov 5, 2026, 20:20:54 UTC

Command ID

gw-64c9a5594...7687081c

Synchronizer ID

devnet::1220...dbf9acf2

Events (6)

exercisedbc022469b1fa28afd38705e2e015bb822585bea2bbdd8d3e7a8933c17050a6b7:Zenith.Gateway.Finalize:Gateway

Contract:0024583214...5684c3d1

Choice: Gateway_FinalizeBlock

Payload

{ "headCid": "008c55c3cb8707905a58ad2d76702a1bc8d03c7eda8628ee6d20d0d9904e5c369aca12122000c250757e9c2106ae3c2bffbbd0fbe46961de97bc48a84bb4e3708bcbf64556", "block": { "timestamp": { "unpack": "1793910052." }, "feeRecipient": "00000000000000000000000000000000000000fe", "prelude": [], "transactions": [ "f86d05858bb2c9700882520894235dc887c81c87cfa6d8a743aa93ace7c51b3c8c865af3107a400080831c94…1f76134c42b9e4d9df9186a07ed4b6992c5b3ee04f4a405de1026a4fb9456e8510c9d4393ec4cd2f2f86d4bf (111 bytes)", "f86d02858bb2c9700882520894235dc887c81c87cfa6d8a743aa93ace7c51b3c8c865af3107a400080831c94…bd062d1837e70ed9e8f067a03f2a176419fa246610151bf201a824918acabed4dff978da1b18f3aa433ce5af (111 bytes)", "f8ac80858bb2c970088259a294d129219e03f0ad695dbb10182802b82adf9ab96c80b84440c10f1900000000…6179e7fe38bfd556ff8c84a057792a8752cc55dbd4337606eff7619a228eeac60e5568636ea4fffdc7a224ad (174 bytes)", "f86d02858bb2c9700882520894235dc887c81c87cfa6d8a743aa93ace7c51b3c8c865af3107a400080831c94…5f021ad0a7496765f626d7a05992a6180cf5f9a656269ca3540553a50e904829c090b7da77fb8bda14d1f011 (111 bytes)", "f871821393858bb2c9700882520894e05ea465255de5a2a0d3e476f8cf2dc9fe07f1bb88016345785d8a0000…23ff764fb5d95268a3b0dba02b280abd7aaf51780cf9a93273f74ef3036522586c80cca5164c3025f7f8c2aa (115 bytes)" ], "epilogue": [], "indexing": [], "rotation": null, "refunds": [] }, "nativePlan": { "credits": [], "collections": [], "settlement": { "tag": "ZthSettlement", "value": {} } }, "tokenPlan": { "routes": [], "wrapperRegistrations": [], "originalRegistrations": [], "metadataUpdates": [], "mints": [], "releases": [], "wrapperCollections": [], "backingInputs": [], "custodyMerges": [], "originalCollections": [], "consolidations": [], "consolidationAccepts": [], "consolidationWithdrawals": [] } }

exercisedf34c7bd9ec0c052bdc5622cf5ab34cf12bc64869829037ee4d7540b189ea7085:Zenith.Evm.Gateway:GatewayHead

Contract:008c55c3cb...cbf64556

Choice: GatewayHead_Finalize

Payload

{ "input": { "parentHash": "ac62c38b9f804cd4dd486fda8b38b31adab84b60d0c844a62d62db557687081c", "timestamp": { "unpack": "1793910052." }, "feeRecipient": "00000000000000000000000000000000000000fe", "prelude": [], "transactions": [ "f86d05858bb2c9700882520894235dc887c81c87cfa6d8a743aa93ace7c51b3c8c865af3107a400080831c94…1f76134c42b9e4d9df9186a07ed4b6992c5b3ee04f4a405de1026a4fb9456e8510c9d4393ec4cd2f2f86d4bf (111 bytes)", "f86d02858bb2c9700882520894235dc887c81c87cfa6d8a743aa93ace7c51b3c8c865af3107a400080831c94…bd062d1837e70ed9e8f067a03f2a176419fa246610151bf201a824918acabed4dff978da1b18f3aa433ce5af (111 bytes)", "f8ac80858bb2c970088259a294d129219e03f0ad695dbb10182802b82adf9ab96c80b84440c10f1900000000…6179e7fe38bfd556ff8c84a057792a8752cc55dbd4337606eff7619a228eeac60e5568636ea4fffdc7a224ad (174 bytes)", "f86d02858bb2c9700882520894235dc887c81c87cfa6d8a743aa93ace7c51b3c8c865af3107a400080831c94…5f021ad0a7496765f626d7a05992a6180cf5f9a656269ca3540553a50e904829c090b7da77fb8bda14d1f011 (111 bytes)", "f871821393858bb2c9700882520894e05ea465255de5a2a0d3e476f8cf2dc9fe07f1bb88016345785d8a0000…23ff764fb5d95268a3b0dba02b280abd7aaf51780cf9a93273f74ef3036522586c80cca5164c3025f7f8c2aa (115 bytes)" ], "epilogue": [], "withdrawals": [], "logFilter": { "addresses": [ "00000000000000000000000000000000000a7e00", "50d0eea5a51b1d262b295f9978ed2e2e02a5a5a3", "f52aba48533156e0180d6f8e6d9a474fa06a90cf" ], "topics0": [] }, "inboxScan": { "gateway": "00000000000000000000000000000000000a7e00", "inboxInitCodeHash": "704985d1ae018e94b3983882895f10ada607c5793c727fdacc1e48b35d65e92c", "runtimeTemplateHash": "f5300aee21aca6c1c1489b43d775454f1392a77df3058f0b2a82e065edbdf345", "immutables": [ { "offset": "278", "size": "32" }, { "offset": "373", "size": "32" }, { "offset": "651", "size": "32" }, { "offset": "758", "size": "32" }, { "offset": "120", "size": "32" } ], "saltOffset": "120", "nativeTopics": [ "8d6cc7bec951dd15d11af1a0ac06bbb8d190c277b0d7ce020da1ffc89b8655e2" ], "tokens": [ "285fb55cf094a2a9e80c26c0d726f1c9b86b86f2", "4feb549aa9608fa13c2e9366df7dd38b267e0d46", "a4923804940ba9accefe23402ef1f793bf9cd473", "d238579f5a5c184fe423d68dcf245c2e86ca60e9" ] } } }

createdf34c7bd9ec0c052bdc5622cf5ab34cf12bc64869829037ee4d7540b189ea7085:Zenith.Evm.Gateway:GatewayHead

Contract:00e22a88c0...eb1354ce

Payload

{ "chainId": { "zeo": "zeo::12204a88976da02f8d43c894dbbbf1d606d82c06d7f73504ec2aa030e88530667974", "version": "64c9a5594fdc9ca81066357699ac446bee6936b5a7f52c88238ddfbb82ac0979" }, "deploymentId": "64c9a5594fdc9ca81066357699ac446bee6936b5a7f52c88238ddfbb82ac0979", "deploymentCid": "0071e5cc368ecfcd19992d2e141e4029742709aca0baaa02e0ec340e4040f5c689ca121220e48eea45aba814eb0e5186eb92759c4541e5d586e32f373cca056340b5a941a4", "blockCid": "009e8d6ac28db66d3f5e2e0411ed8b237d078d80d55bae5767d4b561235deb9187ca121220d27de72674141a011e466cb6f6167359afd449c33ae395922bfee3d9a9bb04a0", "hash": "b04e1c7c05a5c053498123e9dd1a5c58ad326be4ea1763b5a2c2f539fd709c75", "number": "37981", "timestamp": "1793910052", "nextWithdrawalIndex": "5", "committed": { "headerRlp": "f90278a0ac62c38b9f804cd4dd486fda8b38b31adab84b60d0c844a62d62db557687081ca01dcc4de8dec75d…0000000000000000000000a0e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 (635 bytes)", "envelopes": [ "f86d05858bb2c9700882520894235dc887c81c87cfa6d8a743aa93ace7c51b3c8c865af3107a400080831c94…1f76134c42b9e4d9df9186a07ed4b6992c5b3ee04f4a405de1026a4fb9456e8510c9d4393ec4cd2f2f86d4bf (111 bytes)", "f86d02858bb2c9700882520894235dc887c81c87cfa6d8a743aa93ace7c51b3c8c865af3107a400080831c94…bd062d1837e70ed9e8f067a03f2a176419fa246610151bf201a824918acabed4dff978da1b18f3aa433ce5af (111 bytes)", "f8ac80858bb2c970088259a294d129219e03f0ad695dbb10182802b82adf9ab96c80b84440c10f1900000000…6179e7fe38bfd556ff8c84a057792a8752cc55dbd4337606eff7619a228eeac60e5568636ea4fffdc7a224ad (174 bytes)", "f86d02858bb2c9700882520894235dc887c81c87cfa6d8a743aa93ace7c51b3c8c865af3107a400080831c94…5f021ad0a7496765f626d7a05992a6180cf5f9a656269ca3540553a50e904829c090b7da77fb8bda14d1f011 (111 bytes)", "f871821393858bb2c9700882520894e05ea465255de5a2a0d3e476f8cf2dc9fe07f1bb88016345785d8a0000…23ff764fb5d95268a3b0dba02b280abd7aaf51780cf9a93273f74ef3036522586c80cca5164c3025f7f8c2aa (115 bytes)" ], "withdrawals": [], "requests": [], "blobHashes": [] }, "observers": { "map": [ [ "operator::1220b64aeea8abe20728a6f60d66d6a57212ca9ba2f8d3b7a45bf8dd4de6932eeff2", {} ] ] } }

createdbc022469b1fa28afd38705e2e015bb822585bea2bbdd8d3e7a8933c17050a6b7:Zenith.Gateway.Finalize:Gateway

Contract:007cb73dfc...efc3b3a1

Payload

{ "chainId": { "zeo": "zeo::12204a88976da02f8d43c894dbbbf1d606d82c06d7f73504ec2aa030e88530667974", "version": "64c9a5594fdc9ca81066357699ac446bee6936b5a7f52c88238ddfbb82ac0979" }, "deploymentId": "64c9a5594fdc9ca81066357699ac446bee6936b5a7f52c88238ddfbb82ac0979", "deploymentCid": "0071e5cc368ecfcd19992d2e141e4029742709aca0baaa02e0ec340e4040f5c689ca121220e48eea45aba814eb0e5186eb92759c4541e5d586e32f373cca056340b5a941a4", "currentHeadCid": "00e22a88c0e5fdf0d51feb025437578c3593f7c6beef386d66bf225ca55cb257e6ca121220e9bd9e4884a13dbcff60b737de4bdff7ca25e4400f2fe1316af66d59eb1354ce", "operator": "operator::1220b64aeea8abe20728a6f60d66d6a57212ca9ba2f8d3b7a45bf8dd4de6932eeff2", "params": { "capacity": { "native": { "laneGas": "5760000", "laneEntries": "64", "withdrawals": "512", "collections": "64", "scanTokens": "0" }, "token": { "laneGas": "8000000", "laneEntries": "64", "withdrawals": "0", "collections": "32", "scanTokens": "1024" }, "indexing": { "laneGas": "1880000", "laneEntries": "4", "withdrawals": "0", "collections": "0", "scanTokens": "0" } }, "laneMaxFeePerGas": "1000000000000.", "deployInboxGasBound": "470000", "rotateLaneGasBound": "40000", "rotateRecoveryGasBound": "40000", "native": { "tag": "ZthNative", "value": { "wzthInstrument": { "admin": "r-635d45b53c561ec7a462ab7a0511468ae5df3443eb2add2b161255bb95b612ad::12204a88976da02f8d43c894dbbbf1d606d82c06d7f73504ec2aa030e88530667974", "id": "erc20:50d0eea5a51b1d262b295f9978ed2e2e02a5a5a3" }, "wzthRegistrar": "r-635d45b53c561ec7a462ab7a0511468ae5df3443eb2add2b161255bb95b612ad::12204a88976da02f8d43c894dbbbf1d606d82c06d7f73504ec2aa030e88530667974", "genesisSupplyWei": "11002000000000000000000000." } }, "nativeGasBounds": { "collectNative": "90000" }, "tokenGasBounds": { "registerWrapper": "830000", "setWrapperMetadata": "100000", "registerOriginal": "340000", "mint": "110000", "release": "100000", "collectWrapper": "90000", "collectOriginal": "120000" } }, "keys": { "lane": "24075d3562802b90a3aaa567f1bb8ec1fbab83bf", "recovery": "61295be4a97cb7861dfdbede9c8b34d27030897e" }, "nativeState": { "tag": "ZthNativeState", "value": { "evmSupplyWei": "11002004249999984153285419.", "matchedSinkWei": "15600000002000000000.", "wzthOutstandingWei": "11350000000000000000." } }, "tokenState": { "registered": [ [ "285fb55cf094a2a9e80c26c0d726f1c9b86b86f2", "CantonOrigin" ], [ "4feb549aa9608fa13c2e9366df7dd38b267e0d46", "CantonOrigin" ], [ "a4923804940ba9accefe23402ef1f793bf9cd473", "CantonOrigin" ], [ "d238579f5a5c184fe423d68dcf245c2e86ca60e9", "EvmOrigin" ] ] } }