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 #1593 began a shift at Workshop A.

Id

82231c40-8…e3f27d0282231c40-8351-435d-aff5-623fe3f27d02Copy

Full value

82231c40-8351-435d-aff5-623fe3f27d02

Sequence

805004

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:22:17.478243+00:00

Created (UTC)

2026-10-28T09:22:20.372711+00:00

World seconds

74592060

Citizen

b373f0d5-7…7a964011b373f0d5-7e3f-4674-bb73-c9f97a964011Copy

Full value

b373f0d5-7e3f-4674-bb73-c9f97a964011

Related citizen

—

Building

workshop-a

Intent

—

Decision

—

Tick

242063

Chain status

offchain

Integrity class

live

chogos-event-v1
id:82231c40-8351-435d-aff5-623fe3f27d02
seq:805004
kind:work.shift_started
category:work
source:simulation
summary:CHOG #1593 began a shift at Workshop A.
occurredAt:2026-10-28T09:22:17.478Z
createdAt:2026-10-28T09:22:20.372Z
worldS:74592060
tickSeq:242063
actorCitizenId:b373f0d5-7e3f-4674-bb73-c9f97a964011
relatedCitizenId:
buildingId:workshop-a
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:b373f0d5-7e3f-4674-bb73-c9f97a964011:12319:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop A","consumed":{"wood":2},"durationWorldMinutes":256,"role":"crafter","shift":1,"tokenId":"132"}
stateTransition:{}
prevEventHash:0x6c862c9f6111c30853222898998c83b9c2ce627f8436f1bb26cc1899f5b3ee86

Hashes

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

Stored event hash

0x8dac04fc…051b6d7f0x8dac04fca62dbd3af889da21c7f3916ac078ba8163fa2d7c7b4b9314051b6d7fCopy

Full value

0x8dac04fca62dbd3af889da21c7f3916ac078ba8163fa2d7c7b4b9314051b6d7f

Recomputed event hash

0x8dac04fc…051b6d7f0x8dac04fca62dbd3af889da21c7f3916ac078ba8163fa2d7c7b4b9314051b6d7fCopy

Full value

0x8dac04fca62dbd3af889da21c7f3916ac078ba8163fa2d7c7b4b9314051b6d7f

Previous event hash

0x6c862c9f…f5b3ee860x6c862c9f6111c30853222898998c83b9c2ce627f8436f1bb26cc1899f5b3ee86Copy

Full value

0x6c862c9f6111c30853222898998c83b9c2ce627f8436f1bb26cc1899f5b3ee86

Next event hash

0xc162bff3…85fa92860xc162bff3a8571a8675acfe03f03359fa31450555ad9fc305706118d585fa9286Copy

Full value

0xc162bff3a8571a8675acfe03f03359fa31450555ad9fc305706118d585fa9286

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.