Humanitarian agencies are under mounting pressure to show exactly where donations go — without turning the people they serve into data subjects. Creu Roja, the Spanish Red Cross affiliate in Catalonia, has deployed a blockchain-powered digital payments platform that lets donors audit aid flows end-to-end while keeping beneficiaries’ identities and case records off any public ledger.
The system, built with Barcelona-based infrastructure firm BLOOCK, digitizes the lifecycle of assistance — from donation and allocation through to spending at local merchants — creating what the partners describe as an immutable audit trail. But the blockchain role is deliberately narrow: it acts as a verification layer, anchoring cryptographic proofs such as hashes and timestamps, while all personal data remains in Red Cross-controlled systems off-chain.
“People seeking assistance shouldn’t have to choose between getting help and protecting their privacy. We designed this system so donors can verify their contributions made a real difference, and beneficiaries can access support without fear of being tracked, profiled, or stigmatized,” said Francisco López Romero, CTO at Creu Roja, Catalunya.
A transparency push collides with privacy risk
Accountability demands in aid delivery have intensified as communities affected by conflict and disaster increasingly cite corruption, favoritism and opaque distribution as barriers to effective support, according to practitioners and researchers studying humanitarian operations.
Blockchain has been pitched for years as a way to curb leakage by making money trails harder to alter retroactively. Yet many implementations have leaned on invasive identity checks — including biometrics — to prevent duplication and fraud, creating a different set of risks for vulnerable populations.
One of the best-known examples is the World Food Programme’s Building Blocks network, which coordinates assistance through blockchain-linked beneficiary accounts. In Jordan, the program was paired with existing biometric identification to let refugees buy groceries via iris scans, according to program descriptions and case studies. Even when designed for efficiency, the use of biometrics has become a flashpoint. Regulators have recently forced big projects like worldcoin to delete iris-scan data, showing how quickly “proof-of-personhood” systems can run into legal and societal resistance.
Creu Roja and BLOOCK are positioning their deployment as a counter-model: outcome verification without beneficiary identification on-chain — and without “aid instruments” that visibly label recipients at point of sale.
How the new Red Cross system works
Under the design described by the partners, recipients receive digital aid credits in a mobile wallet, without needing a bank account or credit history. They spend those credits at authorized local merchants using QR codes, in transactions meant to resemble ordinary purchases.
Donors and program administrators, meanwhile, see aggregated flows in near real time: how much was allocated, how much was spent, and where funds were used — without access to identities or personal histories of individual recipients. The audit trail is “immutable” in the sense that the proofs anchored to a public blockchain can be independently checked later to confirm the integrity of records held off-chain.
“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.
Catalonia’s government blockchain case-study dossier describes BLOOCK as a layer-2 style approach that aims to keep sensitive data private while still anchoring integrity proofs to Ethereum, partly to avoid the cost and scalability constraints of putting full records directly on a public chain.
BLOOCK provides a “framework” that integrates enterprise systems with blockchains while emphasizing information-security properties such as integrity and authenticity.
From donation traceability to a broader “aid lifecycle”
The rollout builds on earlier work. A Catalonia government report says that in 2019 Creu Roja used BLOOCK to implement a donation traceability system, designed to increase security and veracity of data while protecting the privacy of aid beneficiaries. The same report notes that BLOOCK was recognized in 2020 with a Talent award for the “Cadena Roja” (Red Chain) project with Creu Roja, and also cites public innovation programs that supported the startup around that period.
A 2022 profile of BLOOCK in Catalan tech outlet MetaData described a Red Cross use case that let donors confirm their contribution’s destination while keeping the chain anonymized — “only the person who has made a contribution will know what it has been invested in,” the article mentioned.
What’s new in the current deployment? According to the information shared with AlexaBlockchain, the latest deployment transitions from a narrow “traceability of donations” concept into a digitized payments workflow that covers allocation and spending. This turns transparency into an operational feature rather than an after-the-fact audit.
Identity partners enter the picture
The project also leans on a privacy-first view of identity and eligibility. “What Creu Roja built here is a credential system, not a surveillance system. Recipients hold proof of their eligibility in their own wallet. They present it when needed, reveal nothing else, and move on with their lives,” said Evin McMullen, CEO & Co-Founder of Billions Network.
Billions.Network, described by the company as a mobile-first verification platform (and previously associated with the Polygon ID/Privado ID ecosystem), has been positioning itself as infrastructure for privacy-preserving verification as both AI agents and digital payments proliferate online.
Why this matters — and what it doesn’t solve
The platform offers easily verifiable proof for donors and regulators. They can track that funds went to authorized purposes, with fewer manual steps and less reliance on paper-based workflows that can be slow to reconcile and easy to dispute.
For recipients, the stated goal is dignity-by-design: no “special aid cards,” no public signaling, and minimal data exposure. That matters in contexts where receiving assistance can carry stigma — or where data leaks can be weaponized for discrimination.
Still, the approach doesn’t eliminate the hardest governance questions in aid delivery. A blockchain proof can show that a record wasn’t altered, but it can’t, by itself, guarantee that the underlying eligibility decisions were fair — or that the merchant network was free of bias. The system’s integrity is only as strong as the controls over the off-chain databases, the authorization policies for merchants, and the operational audits that sit around the cryptographic layer.
What Creu Roja’s deployment does suggest is a narrowing of the trade-off that has dogged humanitarian “digital identity” systems: transparency without turning beneficiaries into permanently linkable identifiers on a public network — and without making biometrics the default price of participation.
The article “Spanish Red Cross Uses Blockchain Proofs to Audit Aid—Without Exposing Recipients” was first published on AlexaBlockchain. Read the complete article here: https://alexablockchain.com/spanish-red-cross-uses-blockchain-proofs-to-audit-aid/
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