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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb8fd429584581d1cf32b8afabb8acc82fd4d99c96fb6233ea71b88bfc7942f. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e43f4777-b6f0-4d11-9b62-821c18ae1fd6.json and https://artists.proofprofile.net/proofs/artist/e43f4777-b6f0-4d11-9b62-821c18ae1fd6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The South Is Nu Afrika, Vol. 1: Gangsterz & Revolutionariez