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 0x4a89f91afdb4bae3cfadcacb5c6c88e7355acfa026da35ea28e3483b15f20246. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d285246c-b705-46b8-995e-3f011d9b0457.json and https://artists.proofprofile.net/proofs/artist/d285246c-b705-46b8-995e-3f011d9b0457.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Working - Laid-back Trumpet Jazz
(Tenor Sax and Trumpet Solos) Music for Working
Unique Jazz Trio - Ambiance for Ordering In
Breathtaking Jazz Trio - Ambiance for Breakfast Time
Music for Staying Focused - Cultivated Trumpet Jazz
Music for Positive VIbes - Extraordinary Trumpet Jazz
Refined Background Music for Reducing Stress
Music for Cool Cafes (Trumpet and Alto Sax)
Backdrop for Simple Curiosity - Astonishing Harmonica Solo
Music for Simple Curiosity - Calm Harmonica Solo
Paradise Like Acoustic Smooth Jazz Guitar - Ambiance for Relaxing Experiences
(Piano Jazz Duo) Music for Peaceful Thursday
Groovy Jazz Piano Duo - Background for Mellowing Mondays
Soulful Bossa Guitar Trio - Background for Easy Going Days
(Jazz Organ and Bossa Guitar Trio) Music for Creative Spirits
(Jazz Organ and Bossa Guitar Trio) Music for Keen Spirits
Music for Repeating Anthems (Bossa Guitar Trio with Jazz Organ)
(Acoustic and Electric Bossa Piano Duo) Music for Chill Coffee Houses
Sparkling Acoustic and Electric Bossa Nova Piano Duo - Bgm for Chilly Afternoon
Floating Jazz Impressions: Peaceful Piano