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 #1576 met CHOG #1039 at Commons Square.

Id

5b0685d9-d…6150b2c55b0685d9-da44-40a2-8f2a-63756150b2c5Copy

Full value

5b0685d9-da44-40a2-8f2a-63756150b2c5

Sequence

804904

Kind

social.met

Category

social

Source

simulation

Occurred (UTC)

2026-10-28T09:13:36.478243+00:00

Created (UTC)

2026-10-28T09:13:37.081696+00:00

World seconds

74560800

Citizen

f7f3dbbc-c…2889397ff7f3dbbc-c0f9-4000-af2e-ca7c2889397fCopy

Full value

f7f3dbbc-c0f9-4000-af2e-ca7c2889397f

Related citizen

604c91f4-6…2f3d4e50604c91f4-6efa-4cf0-a9b4-9f282f3d4e50Copy

Full value

604c91f4-6efa-4cf0-a9b4-9f282f3d4e50

Building

commons-square

Intent

—

Decision

—

Tick

241959

Chain status

offchain

Integrity class

live

chogos-event-v1
id:5b0685d9-da44-40a2-8f2a-63756150b2c5
seq:804904
kind:social.met
category:social
source:simulation
summary:CHOG #1576 met CHOG #1039 at Commons Square.
occurredAt:2026-10-28T09:13:36.478Z
createdAt:2026-10-28T09:13:37.081Z
worldS:74560800
tickSeq:241959
actorCitizenId:f7f3dbbc-c0f9-4000-af2e-ca7c2889397f
relatedCitizenId:604c91f4-6efa-4cf0-a9b4-9f282f3d4e50
buildingId:commons-square
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:f7f3dbbc-c0f9-4000-af2e-ca7c2889397f:12020:social.met
intentId:
decisionId:
payload:{"action":"socialize","activity":"socializing","arrived":true,"buildingName":"Commons Square","durationWorldMinutes":87,"relatedTokenId":"1547","tokenId":"115"}
stateTransition:{}
prevEventHash:0x53977754ae97841056b568b05d970937bb726b6836430908988a9bb927cb2c13

Hashes

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

Stored event hash

0xe0cb90e1…03eac0060xe0cb90e1215dd17d6d372807236392aba2a5ca10d57689016ebe860303eac006Copy

Full value

0xe0cb90e1215dd17d6d372807236392aba2a5ca10d57689016ebe860303eac006

Recomputed event hash

0xe0cb90e1…03eac0060xe0cb90e1215dd17d6d372807236392aba2a5ca10d57689016ebe860303eac006Copy

Full value

0xe0cb90e1215dd17d6d372807236392aba2a5ca10d57689016ebe860303eac006

Previous event hash

0x53977754…27cb2c130x53977754ae97841056b568b05d970937bb726b6836430908988a9bb927cb2c13Copy

Full value

0x53977754ae97841056b568b05d970937bb726b6836430908988a9bb927cb2c13

Next event hash

0x83aba974…eeef0fa70x83aba974ea5d129e3f8b5b5d1f60f940032878876627b8bb8ae598caeeef0fa7Copy

Full value

0x83aba974ea5d129e3f8b5b5d1f60f940032878876627b8bb8ae598caeeef0fa7

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.