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 #79 met CHOG #1938 at Commons Square.

Id

be790815-0…d17c73adbe790815-02b0-455a-8dab-16c7d17c73adCopy

Full value

be790815-02b0-455a-8dab-16c7d17c73ad

Sequence

804890

Kind

social.met

Category

social

Source

simulation

Occurred (UTC)

2026-10-28T09:12:51.978243+00:00

Created (UTC)

2026-10-28T09:12:56.850851+00:00

World seconds

74558130

Citizen

cac3e6d7-e…d8ba2468cac3e6d7-e81a-460a-8849-310ad8ba2468Copy

Full value

cac3e6d7-e81a-460a-8849-310ad8ba2468

Related citizen

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

Full value

c1fef0ab-d1cf-4990-837e-ecee51cbf1fc

Building

commons-square

Intent

—

Decision

—

Tick

241951

Chain status

offchain

Integrity class

live

chogos-event-v1
id:be790815-02b0-455a-8dab-16c7d17c73ad
seq:804890
kind:social.met
category:social
source:simulation
summary:CHOG #79 met CHOG #1938 at Commons Square.
occurredAt:2026-10-28T09:12:51.978Z
createdAt:2026-10-28T09:12:56.850Z
worldS:74558130
tickSeq:241951
actorCitizenId:cac3e6d7-e81a-460a-8849-310ad8ba2468
relatedCitizenId:c1fef0ab-d1cf-4990-837e-ecee51cbf1fc
buildingId:commons-square
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:cac3e6d7-e81a-460a-8849-310ad8ba2468:11123:social.met
intentId:
decisionId:
payload:{"action":"socialize","activity":"socializing","arrived":true,"buildingName":"Commons Square","durationWorldMinutes":69,"relatedTokenId":"477","tokenId":"587"}
stateTransition:{}
prevEventHash:0x1d03d7301b6ed04ccd987763a0290877319e098ced26772217dea4fd2456dc3a

Hashes

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

Stored event hash

0xdc1bd1e4…a1238bf90xdc1bd1e4f91308fb3719f721387c5de11ece0dc2035e2e41d3dc5b68a1238bf9Copy

Full value

0xdc1bd1e4f91308fb3719f721387c5de11ece0dc2035e2e41d3dc5b68a1238bf9

Recomputed event hash

0xdc1bd1e4…a1238bf90xdc1bd1e4f91308fb3719f721387c5de11ece0dc2035e2e41d3dc5b68a1238bf9Copy

Full value

0xdc1bd1e4f91308fb3719f721387c5de11ece0dc2035e2e41d3dc5b68a1238bf9

Previous event hash

0x1d03d730…2456dc3a0x1d03d7301b6ed04ccd987763a0290877319e098ced26772217dea4fd2456dc3aCopy

Full value

0x1d03d7301b6ed04ccd987763a0290877319e098ced26772217dea4fd2456dc3a

Next event hash

0x065c9a5e…83224cea0x065c9a5ed9131abf2c07bdb1dba24e4e5343a5920e579bedd18cdfc783224ceaCopy

Full value

0x065c9a5ed9131abf2c07bdb1dba24e4e5343a5920e579bedd18cdfc783224cea

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.