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 #1628 finished a shift at Market.

Id

efb87d66-9…14f84c49efb87d66-9ee3-4bf9-8f8e-0ee014f84c49Copy

Full value

efb87d66-9ee3-4bf9-8f8e-0ee014f84c49

Sequence

805054

Kind

work.shift_completed

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:24:37.978243+00:00

Created (UTC)

2026-10-28T09:24:41.327249+00:00

World seconds

74600490

Citizen

f94e33e5-4…6b36d334f94e33e5-4d79-4eb9-b18b-4b8d6b36d334Copy

Full value

f94e33e5-4d79-4eb9-b18b-4b8d6b36d334

Related citizen

—

Building

market

Intent

—

Decision

—

Tick

242091

Chain status

offchain

Integrity class

live

chogos-event-v1
id:efb87d66-9ee3-4bf9-8f8e-0ee014f84c49
seq:805054
kind:work.shift_completed
category:work
source:simulation
summary:CHOG #1628 finished a shift at Market.
occurredAt:2026-10-28T09:24:37.978Z
createdAt:2026-10-28T09:24:41.327Z
worldS:74600490
tickSeq:242091
actorCitizenId:f94e33e5-4d79-4eb9-b18b-4b8d6b36d334
relatedCitizenId:
buildingId:market
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:f94e33e5-4d79-4eb9-b18b-4b8d6b36d334:10929:work.shift_completed
intentId:
decisionId:
payload:{"activity":"working","buildingName":"Market","role":"merchant","shift":1,"tokenId":"167"}
stateTransition:{}
prevEventHash:0x7f7d1a2c3f502a69bcadd0aa3cde170560fda60c1e3764fbb2fdd470a8c83a3b

Hashes

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

Stored event hash

0x401c682b…c9407f4d0x401c682b3827fadf21fe6fff28a36c9956181e4efe2bb809d74f734bc9407f4dCopy

Full value

0x401c682b3827fadf21fe6fff28a36c9956181e4efe2bb809d74f734bc9407f4d

Recomputed event hash

0x401c682b…c9407f4d0x401c682b3827fadf21fe6fff28a36c9956181e4efe2bb809d74f734bc9407f4dCopy

Full value

0x401c682b3827fadf21fe6fff28a36c9956181e4efe2bb809d74f734bc9407f4d

Previous event hash

0x7f7d1a2c…a8c83a3b0x7f7d1a2c3f502a69bcadd0aa3cde170560fda60c1e3764fbb2fdd470a8c83a3bCopy

Full value

0x7f7d1a2c3f502a69bcadd0aa3cde170560fda60c1e3764fbb2fdd470a8c83a3b

Next event hash

0x47b1bceb…b6d5d4850x47b1bceb006ff7b42f1a81b3fcf07181c03ef2bcf64663a094ec0bfeb6d5d485Copy

Full value

0x47b1bceb006ff7b42f1a81b3fcf07181c03ef2bcf64663a094ec0bfeb6d5d485

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.