Purity culture was a movement in the 1990s within Christianity which emphasized sexual abstinence before marriage. Prominent in American Christian communities in the 1990s, purity culture emphasizes
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b2baad5438512b9dfaa7413853998f26a8b2cde2fb818da93cd7d99f299667. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ba513fb-c80d-4e78-a88d-1fb734b226a5.json and https://artists.proofprofile.net/proofs/artist/6ba513fb-c80d-4e78-a88d-1fb734b226a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).