The Spanish Pink Cross (Creu Roja) has deployed a brand new blockchain-based assist distribution system, RedChain, that guarantees real-time donor transparency with out exposing the identities of the folks receiving help.
In keeping with a launch shared with Cointelegraph, the platform, developed with Barcelona-based infrastructure supplier BLOOCK and zero-knowledge credential agency Billions Community, goals to digitize “your entire assist lifecycle from donation to disbursement.”
It replaces paper vouchers and pay as you go playing cards with ERC‑20 assist credit issued on the Ethereum (ETH) blockchain, delivered to a cellular pockets that can be utilized at taking part retailers by way of fast response (QR) codes.
Beneficiary information, together with names, contact data, and case information, is stored fully offchain in Creu Roja’s personal techniques. The general public blockchain is used purely as a verification layer, anchoring hashes, timestamps and integrity proofs of transactions reasonably than private data.
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RedChain goals to separate transparency from id
Donors and directors can audit when and the place funds have been allotted and spent, whereas the system is designed in order that no occasion can reconstruct particular person identities from onchain information.
A spokesperson from Creu Roja instructed Cointelegraph, “Donors can see aggregated, verifiable data on how funds are allotted and spent,” comparable to how a lot was distributed inside a program and when disbursements occurred. Nevertheless, “what donors won’t ever see are the identities of beneficiaries or their private circumstances.”
The spokesperson mentioned that RedChain was “explicitly designed in order that transparency applies to flows and outcomes, to not people, permitting the Pink Cross to be “accountable to donors with out compromising the privateness or dignity of its beneficiaries.”
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Humanitarian donors demand verifiable assist flows
Creu Roja frames RedChain as a response to mounting strain on humanitarian organizations to show that assist reaches its meant goal with out turning weak communities into information sources.
“Folks searching for help should not have to decide on between getting assist and defending their privateness,” mentioned Francisco López Romero, CTO at Creu Roja Catalunya, within the launch.
Recipients will obtain digital credit in a pockets on their telephone and pay at regular checkouts, making transactions indistinguishable from commonplace purchases and avoiding seen markers that sign somebody as an assist recipient.
“We grant them credit score, they usually should buy, in keeping with rules, on the grocery store chain that adheres to our program,” the spokesperson mentioned. “Nobody might be excluded as a consequence of technical limitations.”
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Blockchain as a public notary for assist
The system implements a hybrid belief mannequin. ERC‑20 tokens characterize allotted assist, whereas spending information and eligibility checks stay in offchain databases linked to onchain proofs.
BLOOCK describes its function as working a “blockchain as a certification layer” structure, the place cryptographic anchors make tampering with inner information detectable with out ever publishing underlying information.
BLOOCK CEO Lluís Llibre instructed Cointelegraph, “As a result of each related state change is cryptographically anchored to a public blockchain, any post-hoc modification of inner information would instantly fail verification in opposition to the immutable onchain proofs.”
He mentioned that, primarily, the blockchain features as a “public notary, confirming that an occasion occurred with out revealing the content material or the events concerned.”
Billions Community, in the meantime, supplies the zero‑data credential layer in order that beneficiaries can show eligibility or authorization with out disclosing their id or attributes. Proofs are held within the person’s personal pockets reasonably than in a centralized id registry.
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