SignSplit launches with $400M to pay people for AI data contributions

SignSplit emerged from stealth with $400 million in funding from W Group at a $1 billion valuation. Its "signed data" platform records provenance, consent and usage rights so contributors get paid when their data trains AI models.

• $400M funding from W Group at a $1B valuation
• Users sign data and earn payouts based on usage
• Companies and universities can create their own data pools
• Verification layer checks whether a dataset or likeness is signed