The DAO hack
E364853
The DAO hack was a 2016 exploit of a major Ethereum-based investment fund smart contract that led to the theft of millions of ether and ultimately prompted a controversial hard fork of the Ethereum blockchain.
All labels observed (2)
| Label | Occurrences |
|---|---|
| The DAO | 1 |
| The DAO hack canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3524635 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: The DAO hack Context triple: [Ethereum blockchain, hardForkReason, The DAO hack]
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A.
Chain Gate
Chain Gate is one of the historic entrances to Jerusalem’s Noble Sanctuary (Al-Aqsa compound), located along the western wall of the sacred precinct.
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B.
Algorand blockchain protocol
Algorand blockchain protocol is a scalable, secure, and energy-efficient public blockchain platform designed by cryptographer Silvio Micali that uses a pure proof-of-stake consensus mechanism.
-
C.
Genesis Block
The Genesis Block is the inaugural block of the Bitcoin blockchain, created by Satoshi Nakamoto in 2009 and serving as the foundation of the entire Bitcoin network.
-
D.
Sandgate
Sandgate is a railway station serving the suburb of Sandgate in the Newcastle region of New South Wales, Australia.
-
E.
Wikkit Gate
Wikkit Gate is a powerful, universe-encompassing force field and key plot device in Douglas Adams' "Life, the Universe and Everything," central to a scheme to destroy the universe.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: The DAO hack Target entity description: The DAO hack was a 2016 exploit of a major Ethereum-based investment fund smart contract that led to the theft of millions of ether and ultimately prompted a controversial hard fork of the Ethereum blockchain.
-
A.
Chain Gate
Chain Gate is one of the historic entrances to Jerusalem’s Noble Sanctuary (Al-Aqsa compound), located along the western wall of the sacred precinct.
-
B.
Algorand blockchain protocol
Algorand blockchain protocol is a scalable, secure, and energy-efficient public blockchain platform designed by cryptographer Silvio Micali that uses a pure proof-of-stake consensus mechanism.
-
C.
Genesis Block
The Genesis Block is the inaugural block of the Bitcoin blockchain, created by Satoshi Nakamoto in 2009 and serving as the foundation of the entire Bitcoin network.
-
D.
Sandgate
Sandgate is a railway station serving the suburb of Sandgate in the Newcastle region of New South Wales, Australia.
-
E.
Wikkit Gate
Wikkit Gate is a powerful, universe-encompassing force field and key plot device in Douglas Adams' "Life, the Universe and Everything," central to a scheme to destroy the universe.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Ethereum incident
ⓘ
cryptocurrency hack ⓘ cybersecurity incident ⓘ smart contract exploit ⓘ |
| affectedProject | The DAO investment fund ⓘ |
| affectedProjectType | decentralized autonomous organization ⓘ |
| approximateValueStolenInEther | about 3.6 million ETH ⓘ |
| approximateValueStolenInUSDAtTheTime | about 50 million USD ⓘ |
| associatedWith |
Ethereum Classic supporters
ⓘ
Ethereum Foundation response ⓘ |
| cause |
recursive call bug
ⓘ
reentrancy vulnerability ⓘ smart contract vulnerability ⓘ |
| communityReaction |
deep division within Ethereum community
ⓘ
support for both fork and no-fork positions ⓘ |
| controversy |
code is law principle
ⓘ
immutability versus intervention debate ⓘ |
| date | 2016-06-17 ⓘ |
| exploitedComponent | The DAO split function ⓘ |
| exploitTechnique | repeated recursive withdrawals ⓘ |
| followedBy |
ongoing legal and regulatory discussions about DAOs
ⓘ
shutdown of The DAO ⓘ |
| governanceIssue | on-chain versus off-chain governance debate ⓘ |
| impact |
highlighted risks of smart contract bugs
ⓘ
increased scrutiny of ICOs ⓘ loss of confidence in The DAO ⓘ regulatory attention to Ethereum and DAOs ⓘ |
| legalCharacterization | disputed theft versus legitimate use of contract code ⓘ |
| locationInBlockchain |
Ethereum blockchain
ⓘ
surface form:
Ethereum mainnet
|
| notableFor |
being one of the earliest major DeFi-related exploits
ⓘ
leading to permanent split between ETH and ETC ⓘ |
| platform |
Ethereum blockchain
ⓘ
surface form:
Ethereum
|
| precededBy | launch of The DAO in 2016 ⓘ |
| response |
community vote on hard fork
ⓘ
introduction of best practices for smart contract development ⓘ security audits of Ethereum smart contracts ⓘ temporary halt of The DAO operations ⓘ |
| result |
Ethereum hard fork
ⓘ
creation of Ethereum Classic ⓘ loss of user funds ⓘ network split ⓘ theft of ether ⓘ |
| securityLesson |
importance of formal verification for smart contracts
ⓘ
need for upgradable contract patterns ⓘ risk of unaudited complex smart contracts ⓘ |
| target |
The DAO hack
self-linksurface differs
ⓘ
surface form:
The DAO
|
| timeToDrainFunds | spread over several hours ⓘ |
| triggeredEvent |
Ethereum hard fork at block 1920000
ⓘ
creation of Ethereum Classic chain ⓘ |
| year | 2016 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: The DAO hack Description of subject: The DAO hack was a 2016 exploit of a major Ethereum-based investment fund smart contract that led to the theft of millions of ether and ultimately prompted a controversial hard fork of the Ethereum blockchain.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
The DAO