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 0xeb0d033061a1d56ebda08e31d1a5fa943af2d77ecda9f9c294642c3458d04fc2. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1537e81b-39ca-4dd7-b220-ae252ebe5eff.json and https://artists.proofprofile.net/proofs/artist/1537e81b-39ca-4dd7-b220-ae252ebe5eff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beats & Beds Vol. 2: Sun-Drenched Cassette
The Mystery of the Greenland Hunters (Synth Pass)