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 A public note at Commons Square records what CHOG #952 did.

Id

1cf7ee27-2…04bd83c21cf7ee27-2311-4dc4-9391-2fff04bd83c2Copy

Full value

1cf7ee27-2311-4dc4-9391-2fff04bd83c2

Sequence

807771

Kind

civic.notice

Category

world

Source

simulation

Occurred (UTC)

2026-10-28T11:21:47.478243+00:00

Created (UTC)

2026-10-28T11:21:48.331182+00:00

World seconds

75022260

Citizen

08856fd0-2…78b97ecb08856fd0-295d-41d0-926d-2bca78b97ecbCopy

Full value

08856fd0-295d-41d0-926d-2bca78b97ecb

Related citizen

—

Building

commons-square

Intent

—

Decision

—

Tick

243467

Chain status

offchain

Integrity class

live

chogos-event-v1
id:1cf7ee27-2311-4dc4-9391-2fff04bd83c2
seq:807771
kind:civic.notice
category:world
source:simulation
summary:A public note at Commons Square records what CHOG #952 did.
occurredAt:2026-10-28T11:21:47.478Z
createdAt:2026-10-28T11:21:48.331Z
worldS:75022260
tickSeq:243467
actorCitizenId:08856fd0-295d-41d0-926d-2bca78b97ecb
relatedCitizenId:
buildingId:commons-square
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:08856fd0-295d-41d0-926d-2bca78b97ecb:notice:unsanctioned_sale:74995200
intentId:
decisionId:
payload:{"act":"unsanctioned_sale","buildingName":"Commons Square","tokenId":"1460"}
stateTransition:{}
prevEventHash:0x0505e1537b0925dba4064270e3429dbf816d1564e314c03467d0eca5aec7b4d1

Hashes

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

Stored event hash

0x00353c66…7e1a71320x00353c66ff7e19e8cf743a7eae008da90648d4e98174da22a66985927e1a7132Copy

Full value

0x00353c66ff7e19e8cf743a7eae008da90648d4e98174da22a66985927e1a7132

Recomputed event hash

0x00353c66…7e1a71320x00353c66ff7e19e8cf743a7eae008da90648d4e98174da22a66985927e1a7132Copy

Full value

0x00353c66ff7e19e8cf743a7eae008da90648d4e98174da22a66985927e1a7132

Previous event hash

0x0505e153…aec7b4d10x0505e1537b0925dba4064270e3429dbf816d1564e314c03467d0eca5aec7b4d1Copy

Full value

0x0505e1537b0925dba4064270e3429dbf816d1564e314c03467d0eca5aec7b4d1

Next event hash

0xa86066e9…9d929b8e0xa86066e9bab8b2138c1bdf4b524d8432204be9155e32c0980cb1fff29d929b8eCopy

Full value

0xa86066e9bab8b2138c1bdf4b524d8432204be9155e32c0980cb1fff29d929b8e

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.