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 #1877 finished a shift at North Farm.

Id

8f2a995b-9…2b585c6f8f2a995b-904c-4e7b-9c33-6fce2b585c6fCopy

Full value

8f2a995b-904c-4e7b-9c33-6fce2b585c6f

Sequence

805038

Kind

work.shift_completed

Category

resource

Source

simulation

Occurred (UTC)

2026-10-28T09:24:15.478243+00:00

Created (UTC)

2026-10-28T09:24:16.249752+00:00

World seconds

74599140

Citizen

bf13f473-7…53df53d4bf13f473-759b-4275-a724-cf7853df53d4Copy

Full value

bf13f473-759b-4275-a724-cf7853df53d4

Related citizen

—

Building

north-farm

Intent

—

Decision

—

Tick

242086

Chain status

offchain

Integrity class

live

chogos-event-v1
id:8f2a995b-904c-4e7b-9c33-6fce2b585c6f
seq:805038
kind:work.shift_completed
category:resource
source:simulation
summary:CHOG #1877 finished a shift at North Farm.
occurredAt:2026-10-28T09:24:15.478Z
createdAt:2026-10-28T09:24:16.249Z
worldS:74599140
tickSeq:242086
actorCitizenId:bf13f473-759b-4275-a724-cf7853df53d4
relatedCitizenId:
buildingId:north-farm
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:bf13f473-759b-4275-a724-cf7853df53d4:12054:work.shift_completed
intentId:
decisionId:
payload:{"activity":"gathering","buildingName":"North Farm","role":"farmer","shift":1,"tokenId":"416"}
stateTransition:{}
prevEventHash:0x79d508d4cc61a4889d1f35aae150c566427435b8241d45912c7dff7695103b0b

Hashes

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

Stored event hash

0x1e474756…f5fae4cd0x1e47475686d825a6bce38f35eaa1119189ec37d27025d865e60e4535f5fae4cdCopy

Full value

0x1e47475686d825a6bce38f35eaa1119189ec37d27025d865e60e4535f5fae4cd

Recomputed event hash

0x1e474756…f5fae4cd0x1e47475686d825a6bce38f35eaa1119189ec37d27025d865e60e4535f5fae4cdCopy

Full value

0x1e47475686d825a6bce38f35eaa1119189ec37d27025d865e60e4535f5fae4cd

Previous event hash

0x79d508d4…95103b0b0x79d508d4cc61a4889d1f35aae150c566427435b8241d45912c7dff7695103b0bCopy

Full value

0x79d508d4cc61a4889d1f35aae150c566427435b8241d45912c7dff7695103b0b

Next event hash

0x343cbb6c…626229d30x343cbb6cf5e806e98a4b6c8c394985ed4b4917ac9d5ebbbe17eca131626229d3Copy

Full value

0x343cbb6cf5e806e98a4b6c8c394985ed4b4917ac9d5ebbbe17eca131626229d3

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.