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 #1572 visited the Market and took a simulated food ration.

Id

ac5ada0a-4…5d3f198dac5ada0a-448a-40ea-8a95-0faa5d3f198dCopy

Full value

ac5ada0a-448a-40ea-8a95-0faa5d3f198d

Sequence

806279

Kind

citizen.market_visit

Category

citizen

Source

simulation

Occurred (UTC)

2026-10-28T10:15:00.978243+00:00

Created (UTC)

2026-10-28T10:15:03.725477+00:00

World seconds

74781870

Citizen

a06081b4-5…1e7ce56ea06081b4-5495-425b-9fa4-42c91e7ce56eCopy

Full value

a06081b4-5495-425b-9fa4-42c91e7ce56e

Related citizen

—

Building

market

Intent

—

Decision

—

Tick

242683

Chain status

offchain

Integrity class

live

chogos-event-v1
id:ac5ada0a-448a-40ea-8a95-0faa5d3f198d
seq:806279
kind:citizen.market_visit
category:citizen
source:simulation
summary:CHOG #1572 visited the Market and took a simulated food ration.
occurredAt:2026-10-28T10:15:00.978Z
createdAt:2026-10-28T10:15:03.725Z
worldS:74781870
tickSeq:242683
actorCitizenId:a06081b4-5495-425b-9fa4-42c91e7ce56e
relatedCitizenId:
buildingId:market
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:a06081b4-5495-425b-9fa4-42c91e7ce56e:11934:citizen.market_visit
intentId:
decisionId:
payload:{"action":"shop","activity":"shopping","arrived":true,"buildingName":"Market","durationWorldMinutes":65,"foodTaken":1,"tokenId":"111"}
stateTransition:{}
prevEventHash:0x63564f5c2c84fd32e901a8fc3d8303f4a9a75bd87de62a31a185969dd70a12fa

Hashes

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

Stored event hash

0xa882d84b…a9ae665a0xa882d84b0379da248977f4b22885c77d69ebaaeac1bff9f89cb9ac1fa9ae665aCopy

Full value

0xa882d84b0379da248977f4b22885c77d69ebaaeac1bff9f89cb9ac1fa9ae665a

Recomputed event hash

0xa882d84b…a9ae665a0xa882d84b0379da248977f4b22885c77d69ebaaeac1bff9f89cb9ac1fa9ae665aCopy

Full value

0xa882d84b0379da248977f4b22885c77d69ebaaeac1bff9f89cb9ac1fa9ae665a

Previous event hash

0x63564f5c…d70a12fa0x63564f5c2c84fd32e901a8fc3d8303f4a9a75bd87de62a31a185969dd70a12faCopy

Full value

0x63564f5c2c84fd32e901a8fc3d8303f4a9a75bd87de62a31a185969dd70a12fa

Next event hash

0xa70dec08…86bafde20xa70dec08cc9dfaf30779ea6d977b2ad1fc9f4f01f5d585f97bbe6eae86bafde2Copy

Full value

0xa70dec08cc9dfaf30779ea6d977b2ad1fc9f4f01f5d585f97bbe6eae86bafde2

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.