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 #1938 visited the Market and took a simulated food ration.

Id

93f834bf-9…b8b5e30493f834bf-9b34-4fdf-a348-9488b8b5e304Copy

Full value

93f834bf-9b34-4fdf-a348-9488b8b5e304

Sequence

805071

Kind

citizen.market_visit

Category

citizen

Source

simulation

Occurred (UTC)

2026-10-28T09:25:03.978243+00:00

Created (UTC)

2026-10-28T09:25:06.54775+00:00

World seconds

74602050

Citizen

c1fef0ab-d…51cbf1fcc1fef0ab-d1cf-4990-837e-ecee51cbf1fcCopy

Full value

c1fef0ab-d1cf-4990-837e-ecee51cbf1fc

Related citizen

—

Building

market

Intent

—

Decision

—

Tick

242096

Chain status

offchain

Integrity class

live

chogos-event-v1
id:93f834bf-9b34-4fdf-a348-9488b8b5e304
seq:805071
kind:citizen.market_visit
category:citizen
source:simulation
summary:CHOG #1938 visited the Market and took a simulated food ration.
occurredAt:2026-10-28T09:25:03.978Z
createdAt:2026-10-28T09:25:06.547Z
worldS:74602050
tickSeq:242096
actorCitizenId:c1fef0ab-d1cf-4990-837e-ecee51cbf1fc
relatedCitizenId:
buildingId:market
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:c1fef0ab-d1cf-4990-837e-ecee51cbf1fc:12024:citizen.market_visit
intentId:
decisionId:
payload:{"action":"shop","activity":"shopping","arrived":true,"buildingName":"Market","durationWorldMinutes":45,"foodTaken":1,"tokenId":"477"}
stateTransition:{}
prevEventHash:0x388864ab3c21f934536498686952313aa5846fd5c11123891329c14b8ecf640f

Hashes

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

Stored event hash

0x87cbb87d…af8ed92b0x87cbb87dc17cefc940d7887a3a6a9966df7b8c370340c18d974d1a5faf8ed92bCopy

Full value

0x87cbb87dc17cefc940d7887a3a6a9966df7b8c370340c18d974d1a5faf8ed92b

Recomputed event hash

0x87cbb87d…af8ed92b0x87cbb87dc17cefc940d7887a3a6a9966df7b8c370340c18d974d1a5faf8ed92bCopy

Full value

0x87cbb87dc17cefc940d7887a3a6a9966df7b8c370340c18d974d1a5faf8ed92b

Previous event hash

0x388864ab…8ecf640f0x388864ab3c21f934536498686952313aa5846fd5c11123891329c14b8ecf640fCopy

Full value

0x388864ab3c21f934536498686952313aa5846fd5c11123891329c14b8ecf640f

Next event hash

0x89c92cea…e1c953620x89c92cea797b584305db4b47b21933b3c264c7e538172f5d823a0f66e1c95362Copy

Full value

0x89c92cea797b584305db4b47b21933b3c264c7e538172f5d823a0f66e1c95362

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.