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 0x834b0701cd1c5865e202e86336ae0a51b02100b91302991776a7ec480086f06e. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/062ffd1a-237e-4c67-8664-cc7ded6a8009.json and https://artists.proofprofile.net/proofs/artist/062ffd1a-237e-4c67-8664-cc7ded6a8009.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Thinking Moments (Soprano Sax Solo)
Quartet Jazz - Ambiance for Intellectual Success
Quartet Jazz - Background Music for Thinking Moments
Quartet Jazz - Background Music for Intellectual Success
Tremendous Quartet Jazz - Ambiance for Listening Together
Groovy Quartet Jazz - Ambiance for Individual Hours
Bossa Nova Guitar (Music for Thoughtful Time)
Backdrop for Thoughtful Time - Cheerful Bossa Guitar Trio
Jazz Piano Duo - Background for Thinking Shadows
Energetic Bossa Nova Piano Duo - Bgm for Evening Intros
Wicked Music for Daily Moment - Piano Bossa Nova Duo
Fashionable Music for Studying Legends - Piano Duo
Bossa Nova Piano Duo - Background Music for Retro Drives