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 #989 began a shift at Workshop A.

Id

ac522fca-4…d330a4e3ac522fca-4892-4ef5-b3bb-2821d330a4e3Copy

Full value

ac522fca-4892-4ef5-b3bb-2821d330a4e3

Sequence

804968

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:20:12.478243+00:00

Created (UTC)

2026-10-28T09:20:13.907378+00:00

World seconds

74584560

Citizen

e618ee4b-1…bcb97234e618ee4b-1e8c-44b9-9c83-baddbcb97234Copy

Full value

e618ee4b-1e8c-44b9-9c83-baddbcb97234

Related citizen

—

Building

workshop-a

Intent

—

Decision

—

Tick

242038

Chain status

offchain

Integrity class

live

chogos-event-v1
id:ac522fca-4892-4ef5-b3bb-2821d330a4e3
seq:804968
kind:work.shift_started
category:work
source:simulation
summary:CHOG #989 began a shift at Workshop A.
occurredAt:2026-10-28T09:20:12.478Z
createdAt:2026-10-28T09:20:13.907Z
worldS:74584560
tickSeq:242038
actorCitizenId:e618ee4b-1e8c-44b9-9c83-baddbcb97234
relatedCitizenId:
buildingId:workshop-a
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:e618ee4b-1e8c-44b9-9c83-baddbcb97234:12505:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop A","consumed":{"wood":2},"durationWorldMinutes":257,"role":"crafter","shift":1,"tokenId":"1497"}
stateTransition:{}
prevEventHash:0x60c8109e25ec83aaf680a57b909a3b14f7ea496c6795eff23777627994f526d6

Hashes

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

Stored event hash

0x5743767e…e12bc7f50x5743767e0b685a415cdd7e80cb55e349a5075d32daf4c368e5b47e6de12bc7f5Copy

Full value

0x5743767e0b685a415cdd7e80cb55e349a5075d32daf4c368e5b47e6de12bc7f5

Recomputed event hash

0x5743767e…e12bc7f50x5743767e0b685a415cdd7e80cb55e349a5075d32daf4c368e5b47e6de12bc7f5Copy

Full value

0x5743767e0b685a415cdd7e80cb55e349a5075d32daf4c368e5b47e6de12bc7f5

Previous event hash

0x60c8109e…94f526d60x60c8109e25ec83aaf680a57b909a3b14f7ea496c6795eff23777627994f526d6Copy

Full value

0x60c8109e25ec83aaf680a57b909a3b14f7ea496c6795eff23777627994f526d6

Next event hash

0x6b037eb9…8f3914500x6b037eb9616cc2800262acb256a8f47a34d116d2d6e2121ca03e996c8f391450Copy

Full value

0x6b037eb9616cc2800262acb256a8f47a34d116d2d6e2121ca03e996c8f391450

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.