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 #1550 finished a shift at Workshop 03.

Id

1c7d911d-5…865aff861c7d911d-5139-45ec-b820-08e3865aff86Copy

Full value

1c7d911d-5139-45ec-b820-08e3865aff86

Sequence

805685

Kind

work.shift_completed

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:50:19.978243+00:00

Created (UTC)

2026-10-28T09:50:24.496736+00:00

World seconds

74693010

Citizen

44f021e0-7…733fc8df44f021e0-7238-403d-802e-a4bd733fc8dfCopy

Full value

44f021e0-7238-403d-802e-a4bd733fc8df

Related citizen

—

Building

workshop-03

Intent

—

Decision

—

Tick

242394

Chain status

offchain

Integrity class

live

chogos-event-v1
id:1c7d911d-5139-45ec-b820-08e3865aff86
seq:805685
kind:work.shift_completed
category:work
source:simulation
summary:CHOG #1550 finished a shift at Workshop 03.
occurredAt:2026-10-28T09:50:19.978Z
createdAt:2026-10-28T09:50:24.496Z
worldS:74693010
tickSeq:242394
actorCitizenId:44f021e0-7238-403d-802e-a4bd733fc8df
relatedCitizenId:
buildingId:workshop-03
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:44f021e0-7238-403d-802e-a4bd733fc8df:14292:work.shift_completed
intentId:
decisionId:
payload:{"activity":"working","buildingName":"Workshop 03","role":"crafter","shift":1,"tokenId":"89"}
stateTransition:{}
prevEventHash:0x4c2fc8c2f9ff8dd4ab5f665abb68837e0e1159fa42933cd62c919477c68aa73f

Hashes

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

Stored event hash

0x57e1ec83…7f4bb2490x57e1ec8319d49e54888d2eb2c5141ede17af210798ea57d17103c64c7f4bb249Copy

Full value

0x57e1ec8319d49e54888d2eb2c5141ede17af210798ea57d17103c64c7f4bb249

Recomputed event hash

0x57e1ec83…7f4bb2490x57e1ec8319d49e54888d2eb2c5141ede17af210798ea57d17103c64c7f4bb249Copy

Full value

0x57e1ec8319d49e54888d2eb2c5141ede17af210798ea57d17103c64c7f4bb249

Previous event hash

0x4c2fc8c2…c68aa73f0x4c2fc8c2f9ff8dd4ab5f665abb68837e0e1159fa42933cd62c919477c68aa73fCopy

Full value

0x4c2fc8c2f9ff8dd4ab5f665abb68837e0e1159fa42933cd62c919477c68aa73f

Next event hash

0xa6f5e5bd…a0ce45a60xa6f5e5bd767ed89c4fcb405e942ee464e41263d09804f9b7d490129fa0ce45a6Copy

Full value

0xa6f5e5bd767ed89c4fcb405e942ee464e41263d09804f9b7d490129fa0ce45a6

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.