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 0x321f6ced035cde87a57ae6caf895160629627f00f0c75348001738150c5fd64d. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a8e3c32-8012-43b8-9f1f-6f9ee71335cc.json and https://artists.proofprofile.net/proofs/artist/7a8e3c32-8012-43b8-9f1f-6f9ee71335cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Thought I Was Timesick - Rare, Remixed and B​-​Sides