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 0xe02af8b3aadd135b0cec974d5a469a6a66ffe982268a59f4dbad5817c335c51d. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ae75b13-b65d-4569-9a6d-66801045e1cf.json and https://artists.proofprofile.net/proofs/artist/9ae75b13-b65d-4569-9a6d-66801045e1cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sounds From the Underground: Halloween Instrumentals, Vol. 1
Sounds From the Underground: Halloween Instrumentals, Vol. 2