Live on Base Sepolia

Own Your Data. Earn From It.

The first privacy-first AI training data marketplace. Prove your credentials with ZK proofs. Get paid for your verified data.

Start Contributing Buy Data

ZK Privacy

On-chain Provenance

Schelling Point Accuracy

data-request.json

{
  "attribute_filters": {
    "defi_user": true,
    "age_range": [18, 35]
  }
  "bounty_eth": 0.05,
  "questionnaire": [
    { "q": "Which DeFi protocols do you use?" }
  ]
}

847

Verified

1.2k

Labelled

0.04 ETH

Avg payout

ZK proof verified · identity never revealed

How it works

Three roles, one protocol

Contributor

1.Verify on-chain credentials
2.Answer targeted questionnaires
3.Get paid per verified response

Labeller

1.Browse open labelling tasks
2.Stake ETH and submit your label
3.Earn from the minority who guessed wrong

Buyer

1.Post a data request with filters
2.Set required attributes & questionnaire
3.Download verified, labelled data

Why DataDaddy

Built on cryptographic guarantees, not trust

ZK Privacy

Credentials are proved with zero-knowledge proofs — your personal data never leaves your device. Verifiers learn only what they need to.

On-chain Provenance

Every data point is anchored to a soulbound ERC-721 certificate on Base. Buyers can audit the full attribution chain on-chain.

Schelling Point Accuracy

Economic incentives align labellers to the truth. Stakes are redistributed from the minority to the majority — quality emerges naturally.

Ready to get started?

Connect your wallet and start earning from your verified credentials today.

Launch App