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 #290 met CHOG #1574 at Commons Square.

Id

9b4be44f-2…16548a519b4be44f-230d-47b6-8b1d-bd0716548a51Copy

Full value

9b4be44f-230d-47b6-8b1d-bd0716548a51

Sequence

807496

Kind

social.met

Category

social

Source

simulation

Occurred (UTC)

2026-10-28T11:07:25.478243+00:00

Created (UTC)

2026-10-28T11:07:29.856096+00:00

World seconds

74970540

Citizen

8a84bcb6-8…67ab9cbd8a84bcb6-8c14-4524-8807-bd1867ab9cbdCopy

Full value

8a84bcb6-8c14-4524-8807-bd1867ab9cbd

Related citizen

5fbcd41e-4…99d2f20e5fbcd41e-4bfe-4a29-9ee3-3b2899d2f20eCopy

Full value

5fbcd41e-4bfe-4a29-9ee3-3b2899d2f20e

Building

commons-square

Intent

—

Decision

—

Tick

243299

Chain status

offchain

Integrity class

live

chogos-event-v1
id:9b4be44f-230d-47b6-8b1d-bd0716548a51
seq:807496
kind:social.met
category:social
source:simulation
summary:CHOG #290 met CHOG #1574 at Commons Square.
occurredAt:2026-10-28T11:07:25.478Z
createdAt:2026-10-28T11:07:29.856Z
worldS:74970540
tickSeq:243299
actorCitizenId:8a84bcb6-8c14-4524-8807-bd1867ab9cbd
relatedCitizenId:5fbcd41e-4bfe-4a29-9ee3-3b2899d2f20e
buildingId:commons-square
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:8a84bcb6-8c14-4524-8807-bd1867ab9cbd:13392:social.met
intentId:
decisionId:
payload:{"action":"socialize","activity":"socializing","arrived":true,"buildingName":"Commons Square","durationWorldMinutes":89,"relatedTokenId":"113","tokenId":"798"}
stateTransition:{}
prevEventHash:0x687958c72543cf5ee81ed9635524b32539e49b16ea6f5efcda124911ff5d74a2

Hashes

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

Stored event hash

0x18032a39…d43bc89d0x18032a390d0c02d1ff61a45fbdc932457707c30c0f91d722cac1ed45d43bc89dCopy

Full value

0x18032a390d0c02d1ff61a45fbdc932457707c30c0f91d722cac1ed45d43bc89d

Recomputed event hash

0x18032a39…d43bc89d0x18032a390d0c02d1ff61a45fbdc932457707c30c0f91d722cac1ed45d43bc89dCopy

Full value

0x18032a390d0c02d1ff61a45fbdc932457707c30c0f91d722cac1ed45d43bc89d

Previous event hash

0x687958c7…ff5d74a20x687958c72543cf5ee81ed9635524b32539e49b16ea6f5efcda124911ff5d74a2Copy

Full value

0x687958c72543cf5ee81ed9635524b32539e49b16ea6f5efcda124911ff5d74a2

Next event hash

0xf637aaf7…e863937d0xf637aaf787f6af9a38570182aeec5bd7a2f8431d34fc4836dbc21c3de863937dCopy

Full value

0xf637aaf787f6af9a38570182aeec5bd7a2f8431d34fc4836dbc21c3de863937d

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.