{"slug": "orangecheck-sybil-resistance-from-a-bitcoin-signature", "title": "OrangeCheck, sybil resistance from a Bitcoin signature", "summary": "OrangeCheck launches a suite of identity and sybil-resistance tools built on Bitcoin signatures, using BIP-322 to verify address ownership without transactions, custody, or KYC. The open-source, MIT-licensed protocols include attestation, encryption, voting, stamping, agent authorization, and pledging, all anchored to a single Bitcoin address.", "body_md": ">_ orangecheck // identity, on bitcoin\n\n# You already have an account.It's your Bitcoin address — [claim it](#identity)\n\nSign one message to prove the address you already control — BIP-322, never a transaction. No password, no KYC, no custody.\n\n✓ bip-322 identity✓ offline-verifiable✓ no custody · no KYC · no permission\n\n§ the family\n\nOne signing primitive, composed nine ways. Each is independent — its own spec, its own site — and shares the same Bitcoin address as identity.\n\nprotocolsopen spec · MIT\n\n[oc·attestsybil resistance · proof of bitcoin stake](https://attest.ochk.io)[oc·lockend-to-end encryption, addressed to a bitcoin address](https://lock.ochk.io)[oc·votestake-weighted, sybil-resistant polls](https://vote.ochk.io)[oc·stampbitcoin-block-anchored signed statements](https://stamp.ochk.io)[oc·agentscoped, revocable authority for agents](https://agent.ochk.io)[oc·pledgebonded commitments, verified by anyone](https://pledge.ochk.io)\n\nproductscommercial · bitcoin-bonded\n\n§ open protocol, forever\n\nNo token, no issuer, no custody. Every artifact is a signed JSON envelope anyone can verify with a Bitcoin node and a BIP-322 verifier — shut us down tomorrow and your identity still checks out.\n\n§ start\n\n## One Bitcoin identity. Six protocols. Three products.\n\nOpen and MIT-licensed — read the spec, or claim your address and open the dashboard.", "url": "https://wpnews.pro/news/orangecheck-sybil-resistance-from-a-bitcoin-signature", "canonical_source": "https://ochk.io/", "published_at": "2026-06-16 01:12:30+00:00", "updated_at": "2026-06-16 01:48:15.100456+00:00", "lang": "en", "topics": ["artificial-intelligence", "ai-ethics", "ai-policy", "ai-safety", "ai-research"], "entities": ["OrangeCheck", "Bitcoin", "BIP-322", "MIT"], "alternates": {"html": "https://wpnews.pro/news/orangecheck-sybil-resistance-from-a-bitcoin-signature", "markdown": "https://wpnews.pro/news/orangecheck-sybil-resistance-from-a-bitcoin-signature.md", "text": "https://wpnews.pro/news/orangecheck-sybil-resistance-from-a-bitcoin-signature.txt", "jsonld": "https://wpnews.pro/news/orangecheck-sybil-resistance-from-a-bitcoin-signature.jsonld"}}