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 #123 began a shift at Workshop A.

Id

f0fc75b3-3…b1f8975af0fc75b3-3aa8-413f-a024-6268b1f8975aCopy

Full value

f0fc75b3-3aa8-413f-a024-6268b1f8975a

Sequence

804981

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:20:49.478243+00:00

Created (UTC)

2026-10-28T09:20:54.02882+00:00

World seconds

74586780

Citizen

759e70e2-d…c8ed569f759e70e2-d8b7-4f8b-9d36-c996c8ed569fCopy

Full value

759e70e2-d8b7-4f8b-9d36-c996c8ed569f

Related citizen

—

Building

workshop-a

Intent

—

Decision

—

Tick

242046

Chain status

offchain

Integrity class

live

chogos-event-v1
id:f0fc75b3-3aa8-413f-a024-6268b1f8975a
seq:804981
kind:work.shift_started
category:work
source:simulation
summary:CHOG #123 began a shift at Workshop A.
occurredAt:2026-10-28T09:20:49.478Z
createdAt:2026-10-28T09:20:54.028Z
worldS:74586780
tickSeq:242046
actorCitizenId:759e70e2-d8b7-4f8b-9d36-c996c8ed569f
relatedCitizenId:
buildingId:workshop-a
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:759e70e2-d8b7-4f8b-9d36-c996c8ed569f:12132:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop A","consumed":{"wood":2},"durationWorldMinutes":270,"role":"crafter","shift":1,"tokenId":"631"}
stateTransition:{}
prevEventHash:0x3dae7a26b58fd96a098009dcdde9e82a7720322f218316d9ba6bd1d2fe121e07

Hashes

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

Stored event hash

0x5575f1ee…3e9f2e330x5575f1ee7288611b90e6e773f37689a82a9487a2566c86161405d8053e9f2e33Copy

Full value

0x5575f1ee7288611b90e6e773f37689a82a9487a2566c86161405d8053e9f2e33

Recomputed event hash

0x5575f1ee…3e9f2e330x5575f1ee7288611b90e6e773f37689a82a9487a2566c86161405d8053e9f2e33Copy

Full value

0x5575f1ee7288611b90e6e773f37689a82a9487a2566c86161405d8053e9f2e33

Previous event hash

0x3dae7a26…fe121e070x3dae7a26b58fd96a098009dcdde9e82a7720322f218316d9ba6bd1d2fe121e07Copy

Full value

0x3dae7a26b58fd96a098009dcdde9e82a7720322f218316d9ba6bd1d2fe121e07

Next event hash

0x14072766…890a6e9e0x1407276613d3c6323476185dc7e3ff97de7d6d6ad02a1fd95fc3214e890a6e9eCopy

Full value

0x1407276613d3c6323476185dc7e3ff97de7d6d6ad02a1fd95fc3214e890a6e9e

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.