Blockchain IDs: Privacy and Security Without Sacrificing Control

Added as a minimal stub because DEM-02 (Blockchain Voting) names this specific technology as its own load-bearing prerequisite and can't be fully understood without it existing as an issue. The party's position, migrated faithfully from the 2024 platform: identity verification using decentralized ledger technology (DLT), removing dependence on centralized databases and removing the single point of failure that makes conventional identity systems attractive breach targets. The core technical claim is selective disclosure via cryptographic methods including zero-knowledge proofs: proving a specific fact (you're old enough to buy something, you live in a certain jurisdiction) without revealing the underlying data (your exact birthdate, your exact address). No central authority handles authentication; the blockchain itself validates identity claims, and once a verification is recorded, the source document describes it as tamper-proof and immutable.

The document is explicit that this needs careful, deliberate rollout: "these systems must meet the highest standards of security, privacy, and accessibility before widespread adoption." It states its main anticipated eventual payoff as enabling secure blockchain voting per DEM-02. 2026 reframing: DEM-02 itself now notes that the one US blockchain-voting pilot (West Virginia's Voatz program) was discontinued after a serious security audit. Voting has receded from live policy; it hasn't advanced toward it. This issue's technology doesn't need that fight won to matter: proving you're old enough to buy something, or that you live where you say you live, without ever handing over your exact birthdate or your exact address, already works today, on this issue's own terms, whether or not a single state ever runs a blockchain election. That's the use case this technology actually stands on, and it isn't contingent on DEM-02's more speculative one. 2026 addition: any government deployment of this system should carry a statutory prohibition on backdoors and a warrant requirement for any compelled disclosure of the underlying data. The legal and cryptographic safeguards reinforce each other. It should also remain strictly optional: the conventional, non-digital verification process stays available and equally valid for anyone without a smartphone or the digital literacy to use the new system, so this technology adds a faster option without ever becoming the only one.