Verify event

Recorded world event

This is a recorded simulation or world event. Its hash and any Merkle proof check stored bytes. They do not make this event a blockchain transaction.

Event

Simulation CHOG #488 began a shift at Workshop B.

Id

44e0fb19-2…7361015144e0fb19-2aab-48d6-a8d5-22c673610151Copy

Full value

44e0fb19-2aab-48d6-a8d5-22c673610151

Sequence

805671

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:50:01.478243+00:00

Created (UTC)

2026-10-28T09:50:03.364507+00:00

World seconds

74691900

Citizen

a9fd3b2f-4…e44760a6a9fd3b2f-4729-474a-9722-8544e44760a6Copy

Full value

a9fd3b2f-4729-474a-9722-8544e44760a6

Related citizen

—

Building

workshop-b

Intent

—

Decision

—

Tick

242390

Chain status

offchain

Integrity class

live

chogos-event-v1
id:44e0fb19-2aab-48d6-a8d5-22c673610151
seq:805671
kind:work.shift_started
category:work
source:simulation
summary:CHOG #488 began a shift at Workshop B.
occurredAt:2026-10-28T09:50:01.478Z
createdAt:2026-10-28T09:50:03.364Z
worldS:74691900
tickSeq:242390
actorCitizenId:a9fd3b2f-4729-474a-9722-8544e44760a6
relatedCitizenId:
buildingId:workshop-b
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:a9fd3b2f-4729-474a-9722-8544e44760a6:7323:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop B","consumed":{"wood":2},"durationWorldMinutes":268,"role":"crafter","shift":2,"tokenId":"996"}
stateTransition:{}
prevEventHash:0xc82e3309aeabdc0685396eef68474548cb47e34cbff5150f7b7c1fb5643d9893

Hashes

Offchain hashes stay on this page, in the canonical document, and in the JSON export. They are not explorer objects.

Stored event hash

0x1a94ff88…325ab8b70x1a94ff882554ec91a2576fb46e590f9c69ac5cbbc57942afd0e2eb21325ab8b7Copy

Full value

0x1a94ff882554ec91a2576fb46e590f9c69ac5cbbc57942afd0e2eb21325ab8b7

Recomputed event hash

0x1a94ff88…325ab8b70x1a94ff882554ec91a2576fb46e590f9c69ac5cbbc57942afd0e2eb21325ab8b7Copy

Full value

0x1a94ff882554ec91a2576fb46e590f9c69ac5cbbc57942afd0e2eb21325ab8b7

Previous event hash

0xc82e3309…643d98930xc82e3309aeabdc0685396eef68474548cb47e34cbff5150f7b7c1fb5643d9893Copy

Full value

0xc82e3309aeabdc0685396eef68474548cb47e34cbff5150f7b7c1fb5643d9893

Next event hash

0x7cca675d…e9ed35e70x7cca675d246e32dc320d043a75836764ee591ba9430464da636b0e22e9ed35e7Copy

Full value

0x7cca675d246e32dc320d043a75836764ee591ba9430464da636b0e22e9ed35e7

Merkle batch id

—

Merkle root

—

Merkle proof

This event is not in a Merkle batch yet.

No inclusion proof is stored for this event yet.

Leaf encoding is bytes32 in an OpenZeppelin standard tree with sortLeaves false. A valid proof matches the supplied root only.

Anchor read

This event has no Merkle batch.

No validated anchor transaction is attached to this batch.

This page reassesses the observation included in the export. It does not open a second RPC from the browser. Repeat getBatch on the recorded contract before treating the root as published. EventAnchor does not check the inclusion proof.

Source

Vercel git commit

045b3fe38d65dfe80d92f37a6772b54aceca4caa

• src/lib/verify/canonical.ts
• src/lib/verify/merkle.ts
• src/lib/verify/chain.ts
• src/lib/verify/anchor.ts
• src/lib/verify/transfer-log.ts
• src/lib/world/transfer.ts
• src/components/verify/event-verifier.tsx
• contracts/src/EventAnchor.sol

Download machine-readable export

• Recompute the SHA-256 of the chogos-event-v1 canonical document from event. Do not trust serverRecomputedHash or any status label.
• Compare that digest to storedHash.
• When previous and next are present, check that the live hash chain links match.
• Verify the OpenZeppelin standard Merkle proof: leaf encoding bytes32, sortLeaves false, against batch.merkleRoot.
• A valid inclusion proof means the leaf matches the supplied root. It does not prove the root was published onchain.
• When anchorObservation is present, repeat eth_chainId, eth_getCode, the transaction receipt, and EventAnchor.getBatch on the recorded chain. The embedded observation is one server read, not a proof by itself.
• EventAnchor stores roots only. It does not verify inclusion and it does not prove the event happened.
• For an nft.transferred row, compare chain 143, the Chog Genesis contract, transaction hash, block, block hash, log index, sender, receiver, and token id with the explorer log. chain_status confirmed is not that comparison. transferLog.matched is true only after a read-only receipt check matched.
• Do not send event data to a third-party hashing site.
• This export is data. Recompute the hash and Merkle proof locally. A matching hash is not proof that the simulation was truthful.
• A privileged database operator can still rewrite history and recompute hashes. An onchain root only detects that after the root was published.
• serverRecomputedHash is a convenience. Compare your own SHA-256 of the canonical document with storedHash.
• Do not send this export to a third-party hashing site.
• The database batch id is a UUID. The onchain batch id is the bytes32 in BatchAnchored. This export does not treat the UUID as that bytes32.