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Spain’s Red Cross launches RedChain, a blockchain aid system using Ethereum and zero-knowledge proofs for private, verifiable donations and secure digital payments.
The Spanish Red Cross has launched RedChain, a blockchain-based aid system using Ethereum and zero-knowledge proofs to enable private, verifiable donations and digital payments.
Recipients receive ERC-20 credits in mobile wallets, spendable at local merchants via QR codes, with personal data kept off-chain.
Only cryptographic hashes and timestamps are recorded on the blockchain, ensuring transparency without exposing identities.
The system uses decentralized identity verification and privacy-preserving credentials to confirm eligibility while preventing stigma, offering a secure, accountable alternative to traditional aid methods.
La Cruz Roja de España lanza RedChain, un sistema de ayuda blockchain que utiliza Ethereum y pruebas de conocimiento cero para donaciones privadas, verificables y pagos digitales seguros.