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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe048142d292622494f7596b62973692cf0f51cb6d1ff7edf39a1728aca8249e8. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d21f9e8-3da2-4ae0-9fa8-9b5cf30e3b4e.json and https://artists.proofprofile.net/proofs/artist/7d21f9e8-3da2-4ae0-9fa8-9b5cf30e3b4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
2020 April Ambient Rain Sounds for Total Relaxation
Rushing Woodland Stream Over a Waterfall
Slow Gentle Island Beach Waves Later in the Day
Seagulls on the Beach (Relaxing Ocean Waves)