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

f5e48401-e…e3f1a38cf5e48401-e6c2-496a-8a51-2db5e3f1a38cCopy

Full value

f5e48401-e6c2-496a-8a51-2db5e3f1a38c

Sequence

806284

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T10:15:05.478243+00:00

Created (UTC)

2026-10-28T10:15:08.880185+00:00

World seconds

74782140

Citizen

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

Full value

a9fd3b2f-4729-474a-9722-8544e44760a6

Related citizen

—

Building

workshop-b

Intent

—

Decision

—

Tick

242684

Chain status

offchain

Integrity class

live

chogos-event-v1
id:f5e48401-e6c2-496a-8a51-2db5e3f1a38c
seq:806284
kind:work.shift_started
category:work
source:simulation
summary:CHOG #488 began a shift at Workshop B.
occurredAt:2026-10-28T10:15:05.478Z
createdAt:2026-10-28T10:15:08.880Z
worldS:74782140
tickSeq:242684
actorCitizenId:a9fd3b2f-4729-474a-9722-8544e44760a6
relatedCitizenId:
buildingId:workshop-b
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:a9fd3b2f-4729-474a-9722-8544e44760a6:7336:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop B","consumed":{"wood":2},"durationWorldMinutes":265,"role":"crafter","shift":2,"tokenId":"996"}
stateTransition:{}
prevEventHash:0x9296eff9ef8f9a68b99e2e56197b17282e5ac6c29701b185c06887e50543fdcc

Hashes

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

Stored event hash

0x89ae0497…a73781d70x89ae049737bd7eb189d6b24243d3871e8fc390935b39c2d27ff0593ca73781d7Copy

Full value

0x89ae049737bd7eb189d6b24243d3871e8fc390935b39c2d27ff0593ca73781d7

Recomputed event hash

0x89ae0497…a73781d70x89ae049737bd7eb189d6b24243d3871e8fc390935b39c2d27ff0593ca73781d7Copy

Full value

0x89ae049737bd7eb189d6b24243d3871e8fc390935b39c2d27ff0593ca73781d7

Previous event hash

0x9296eff9…0543fdcc0x9296eff9ef8f9a68b99e2e56197b17282e5ac6c29701b185c06887e50543fdccCopy

Full value

0x9296eff9ef8f9a68b99e2e56197b17282e5ac6c29701b185c06887e50543fdcc

Next event hash

0xff2d6cba…55992c940xff2d6cbaecec5ff818f7da07a013d85ea4a2466b0acdb1fe982fa49755992c94Copy

Full value

0xff2d6cbaecec5ff818f7da07a013d85ea4a2466b0acdb1fe982fa49755992c94

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.