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

System Town construction materials recovered. Wood 19, stone 400.

Id

d25457a4-d…5ce81705d25457a4-dea4-4173-95ac-e13d5ce81705Copy

Full value

d25457a4-dea4-4173-95ac-e13d5ce81705

Sequence

805068

Kind

town.need_resolved

Category

world

Source

system

Occurred (UTC)

2026-10-28T09:24:56.476621+00:00

Created (UTC)

2026-10-28T09:24:56.476621+00:00

World seconds

74601599

Citizen

—

Related citizen

—

Building

storehouse

Intent

—

Decision

—

Tick

242094

Chain status

offchain

Integrity class

live

chogos-event-v1
id:d25457a4-dea4-4173-95ac-e13d5ce81705
seq:805068
kind:town.need_resolved
category:world
source:system
summary:Town construction materials recovered. Wood 19, stone 400.
occurredAt:2026-10-28T09:24:56.476Z
createdAt:2026-10-28T09:24:56.476Z
worldS:74601599
tickSeq:242094
actorCitizenId:
relatedCitizenId:
buildingId:storehouse
chainStatus:offchain
chainId:
txHash:
dedupeKey:system:town.need_resolved:materials_shortage:242094
intentId:
decisionId:
payload:{"blocker":null,"buildingName":"Storehouse","evidence":{"farms":6,"food":389,"houses":18,"reservedLots":0,"stone":400,"tools":400,"underConstruction":[{"id":"farm-06","kind":"farm","progress":0},{"id":"house-18","kind":"house","progress":0},{"id":"workshop-06","kind":"workshop","progress":0}],"vacantServedLots":12,"wood":19,"workshops":6},"needType":"materials_shortage","previousStatus":"active","status":"resolved"}
stateTransition:{}
prevEventHash:0x6afac5dfc488b72f711235cb031518b6e3fd0f51b43aee83bcf100d6245d8140

Hashes

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

Stored event hash

0x93475960…a145c0190x93475960de7de0ee437c4ef4ac783352de1371fd88b4196ecda9fef5a145c019Copy

Full value

0x93475960de7de0ee437c4ef4ac783352de1371fd88b4196ecda9fef5a145c019

Recomputed event hash

0x93475960…a145c0190x93475960de7de0ee437c4ef4ac783352de1371fd88b4196ecda9fef5a145c019Copy

Full value

0x93475960de7de0ee437c4ef4ac783352de1371fd88b4196ecda9fef5a145c019

Previous event hash

0x6afac5df…245d81400x6afac5dfc488b72f711235cb031518b6e3fd0f51b43aee83bcf100d6245d8140Copy

Full value

0x6afac5dfc488b72f711235cb031518b6e3fd0f51b43aee83bcf100d6245d8140

Next event hash

0x6f6b7fc1…be50361e0x6f6b7fc113f9947ca68ee34fdef3a9634a23e00bccc82adb46590710be50361eCopy

Full value

0x6f6b7fc113f9947ca68ee34fdef3a9634a23e00bccc82adb46590710be50361e

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.