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 #1570 began a shift at Workshop 03.

Id

71f29cb3-9…ecb0b21c71f29cb3-9db0-4ac7-bed6-319becb0b21cCopy

Full value

71f29cb3-9db0-4ac7-bed6-319becb0b21c

Sequence

804978

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:20:35.478243+00:00

Created (UTC)

2026-10-28T09:20:38.982505+00:00

World seconds

74585940

Citizen

b565b3ef-d…8482cfa3b565b3ef-d20b-41f8-ab4e-e20e8482cfa3Copy

Full value

b565b3ef-d20b-41f8-ab4e-e20e8482cfa3

Related citizen

—

Building

workshop-03

Intent

—

Decision

—

Tick

242043

Chain status

offchain

Integrity class

live

chogos-event-v1
id:71f29cb3-9db0-4ac7-bed6-319becb0b21c
seq:804978
kind:work.shift_started
category:work
source:simulation
summary:CHOG #1570 began a shift at Workshop 03.
occurredAt:2026-10-28T09:20:35.478Z
createdAt:2026-10-28T09:20:38.982Z
worldS:74585940
tickSeq:242043
actorCitizenId:b565b3ef-d20b-41f8-ab4e-e20e8482cfa3
relatedCitizenId:
buildingId:workshop-03
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:b565b3ef-d20b-41f8-ab4e-e20e8482cfa3:13343:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop 03","consumed":{"wood":2},"durationWorldMinutes":241,"role":"crafter","shift":1,"tokenId":"109"}
stateTransition:{}
prevEventHash:0x708b212bb0bc341951fef95f5b7eb75e76a7afa8134949194ca6a8937e9ffb99

Hashes

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

Stored event hash

0x5104b638…37b16fe60x5104b638221bdc897964f1def3d8f12519d7bf08d56f37864c9ba4b937b16fe6Copy

Full value

0x5104b638221bdc897964f1def3d8f12519d7bf08d56f37864c9ba4b937b16fe6

Recomputed event hash

0x5104b638…37b16fe60x5104b638221bdc897964f1def3d8f12519d7bf08d56f37864c9ba4b937b16fe6Copy

Full value

0x5104b638221bdc897964f1def3d8f12519d7bf08d56f37864c9ba4b937b16fe6

Previous event hash

0x708b212b…7e9ffb990x708b212bb0bc341951fef95f5b7eb75e76a7afa8134949194ca6a8937e9ffb99Copy

Full value

0x708b212bb0bc341951fef95f5b7eb75e76a7afa8134949194ca6a8937e9ffb99

Next event hash

0xc17f9b81…303037f50xc17f9b81cf5363ce5ee9daac6d504db0e9124d4a916f365176c459a2303037f5Copy

Full value

0xc17f9b81cf5363ce5ee9daac6d504db0e9124d4a916f365176c459a2303037f5

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.