Creu Roja implements Billions Network's zero-knowledge technology to offer donors full traceability while maintaining the privacy of beneficiary identities.Creu Roja implements Billions Network's zero-knowledge technology to offer donors full traceability while maintaining the privacy of beneficiary identities.

La Croce Rossa Spagnola implementa una piattaforma di aiuti digitali che preserva la privacy con trasparenza verificabile dei donatori

6 min read

Barcelona, Spain — 3rd February 2026, 3 PM CET  — At a moment when humanitarian organizations worldwide face intensifying pressure over aid accountability, Creu Roja (Spanish Red Cross) has deployed a blockchain-based digital payments platform that delivers complete financial transparency to donors without compromising the privacy or dignity of vulnerable recipients, replacing manual and paper-based processes.

La piattaforma, sviluppata in collaborazione con l’azienda di infrastrutture tecniche di Barcellona BLOOCK, digitalizza l’intero ciclo di vita degli aiuti, dalla donazione all’erogazione, per creare una traccia di audit immutabile garantendo che nessun dato personale tocchi mai la blockchain pubblica. A differenza di alcune iniziative basate su blockchain che si affidano a identificatori biometrici o a una raccolta dati invasiva, il design della piattaforma Creu Roja verifica i risultati senza registrare chi ha ricevuto gli aiuti.

“Le persone in cerca di assistenza non dovrebbero scegliere tra ricevere aiuto e proteggere la loro privacy. Abbiamo progettato questo sistema affinché i donatori possano verificare che i loro contributi abbiano avuto un impatto reale, e i beneficiari possano accedere al supporto senza timore di essere tracciati, profilati o stigmatizzati” ha dichiarato Francisco López Romero, CTO di Creu Roja, Catalunya.

The deployment arrives amid growing scrutiny of international aid delivery, as affected communities increasingly identify corruption, favoritism, and lack of transparency as barriers to effective assistance. Blockchain solutions have emerged as a potential fix, yet most implementations require beneficiaries to surrender sensitive personal data, often including biometrics, raising concerns from privacy advocates that the cure may create new risks, with even well-intentioned projects at risk of exposing vulnerable populations to surveillance, profiling, and discrimination. Creu Roja’s blockchain serves purely as a verification layer, anchoring cryptographic proofs of transactions without storing any identifying information.

La piattaforma sostituisce i flussi di lavoro basati su carta e le tradizionali carte prepagate con un sistema digitale che separa ciò che i donatori devono sapere da ciò che non devono. I destinatari ricevono crediti di aiuto digitali depositati in un portafoglio mobile personale, senza necessità di conto bancario o storia creditizia, preservando la dignità e riducendo le barriere all’accesso. Questi crediti vengono spesi presso commercianti locali autorizzati tramite codice QR in transazioni indistinguibili da qualsiasi acquisto normale. Non ci sono “carte di aiuto” speciali o altri strumenti che identificano pubblicamente qualcuno come destinatario.

I donatori e gli amministratori ottengono visibilità in tempo reale sui flussi di aiuti aggregati, mostrando quanto è stato allocato, quanto è stato speso e dove sono andati i fondi. Una traccia di audit immutabile ancorata su una blockchain pubblica fornisce una prova crittografica che ogni euro ha raggiunto gli scopi autorizzati, garantendo al contempo zero accesso alle identità dei singoli destinatari.

“The architecture follows a principle we apply across all our enterprise deployments: blockchain should certify truth, not store content. Every transaction generates a cryptographic proof that’s permanently anchored and independently verifiable, but the proof contains no personal information,” said Lluís Llibre, CEO of BLOOCK

To date, the BLOOCK platform has processed more than 952,000 cryptographic transactions and over 257,000 data validations. The project was recognized with the Talent Chamber Award in the Innovation category in 2020, jointly awarded by the Barcelona Chamber of Commerce and Welcome Talent Society.

From an architectural perspective, RedChain implements a hybrid trust model, with beneficiary information, such as names, contact details, and case records remaining entirely off-chain in Creu Roja’s controlled systems. Aid credits exist as ERC-20 tokens on Ethereum smart contracts, representing allocated funds without identifying their holders. When transactions occur, only hashes, timestamps, and integrity anchors are written to the public blockchain, while actual spending records stay in off-chain databases with corresponding on-chain verification hashes. The complete audit trail can be reconstructed from on-chain proofs without ever exposing personal data.

The technology stack includes Ethereum for public blockchain anchoring, Solidity smart contracts for ERC-20 based credit issuance, a Go backend with REST API, Angular for administrative and merchant web interfaces, Ionic for the mobile wallet, and role-based access control with digital signatures throughout. This architecture ensures that even if external systems were compromised, the blockchain itself contains no exploitable personal information.

“Quello che Creu Roja ha costruito qui è un sistema di credenziali, non un sistema di sorveglianza. I destinatari possiedono la prova della loro idoneità nel proprio wallet. La presentano quando necessario, non rivelano nient’altro e continuano con le loro vite. È così che l’identità dovrebbe funzionare ovunque e specialmente nei sistemi umanitari e di interesse pubblico. Tu possiedi le tue credenziali, decidi cosa condividere e nessuno costruisce un profilo su di te senza il tuo consenso,” ha detto Evin McMullen, CEO & Co-Fondatore, Billions Network

The BLOOCK’s approach demonstrates how humanitarian organizations can combine accountability, privacy, and digital efficiency without introducing new risks for the people they serve.

-end-

Informazioni su Billions
Billions.Network (precedentemente Polygon ID) è la principale piattaforma di verifica umana e AI, costruita su una verifica mobile-first per scalare globalmente l’internet del valore. Creata dai custodi del principale framework di verifica a conoscenza zero al mondo, Circom, Billions protegge il lavoro di grandi organizzazioni ed ecosistemi blockchain che servono oltre 150 milioni di utenti a livello globale. La piattaforma fornisce soluzioni di identità digitale che preservano la privacy e funzionano sia con applicazioni Web2 che Web3.

For more information, visit https://billions.network

About BLOOCK

BLOOCK è una piattaforma software innovativa che integra i sistemi IT aziendali con la tecnologia blockchain in modo rapido, sicuro ed economico. Fondata a Barcellona nel 2020, BLOOCK ha implementato soluzioni per clienti nei settori farmaceutico, sanitario, dei servizi finanziari, dell’istruzione e della logistica, rendendo accessibili i benefici della blockchain senza complessità tecnica. Il framework di BLOOCK supporta i cinque pilastri della sicurezza delle informazioni: integrità, autenticità, disponibilità, riservatezza e non ripudio.

For more information, visit https://bloock.com or write to hello@bloock.com

About Creu Roja

Creu Roja (Spanish Red Cross) is a voluntary humanitarian institution serving as the Spanish affiliate of the International Red Cross and Red Crescent Movement. Founded in 1864, it operates at local, provincial, regional, and national levels across Spain, providing emergency healthcare, social inclusion services, employment support, and disaster response. 

Website: www2.cruzroja.es 

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