1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e2a3f02190620b2dc4c0de61e55a1e5c589028d0099c049c57f8641a166d60. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/126222c0-a568-47a5-ab0d-56003d211f10.json and https://artists.proofprofile.net/proofs/artist/126222c0-a568-47a5-ab0d-56003d211f10.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dope, Guns & Fucking In The Streets: 1988-1998 Volume 1-11
Dope Guns & Fucking In The Streets: Vol. 8-11