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 0x2fd9aaefdab779dba96ab4a7bb1d91e7b3f0a7d7d89ee27fa200c158e8ba829c. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4e1e946-519b-4c0d-bb86-fdc1d72f7b0f.json and https://artists.proofprofile.net/proofs/artist/c4e1e946-519b-4c0d-bb86-fdc1d72f7b0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Co Working Spaces - Stellar Trumpet Jazz
Tenor Sax and Trumpet Solos - Music for Offices
Polished Background Music for Restaurants
Music for Work from Home - Electric Piano and Alto Saxophone
Music for Reading - Delightful Electric Piano and Alto Saxophone
Elegant Jazz Piano - Background for Breakfast
Backdrop for Quarantine - Suave Tenor Saxophone
Jazz Trio - Background for Breakfast Time
Remarkable Music for Dinner Parties - Trumpet and Soprano Sax
Backdrop for Ordering In - Smooth Trumpet and Alto Sax
(Tenor Sax and Trumpet Solos) Music for Resting
Simple Background Music for Mental Health
Music for Stress Relief (Trumpet and Alto Sax)
Music for Staying Fresh (Trumpet and Alto Sax)
Retro Music for Mental Exercises - Trumpet and Alto Sax
Lonely Jazz Trio - Background for Daily Unwinding
Sparkling Bebop - Background for Monday at Work
Jazz - Background Music for Comfy Offices
Jazz - Background Music for Busy Morning
Trumpet and Alto Saxophone (Music for Hotel Lunches)
Backdrop for Spring Flings - Trumpet, Alto Sax and Tenor Sax
Lonely Music for April Moods - Trumpet, Alto Sax and Tenor Sax
Mind-blowing Trumpet Solo - Background for Quiet Work Time
Music for Iconic Seasons - Deluxe Jazz Quintet
Jazz Violin - Ambiance for Iconic Seasons
Jazz Organ - Background Music for Coffee Summers
Music for Long Summer Days - Jazz Quintet
Backdrop for Simple Curiosity - Charming Harmonica Solo
Stylish Acoustic and Electric Piano Jazz Duo - Bgm for Fresh Days
Smooth Jazz Guitar - Bgm for Simple Curiosity
Jazz Piano Duo - Background for Sweater Weather
Wondrous Music for Roaring Lounge - Jazz Organ and Guitar
Jazz Piano Duo - Ambiance for Entertaining Ways
Mind-blowing Background for Invisible Coffee
Vintage Jazz Piano Duo - Ambiance for Upcoming Times
Romantic Saxophone Bossa - Bgm for Cool Autumn
Trumpet Bossa - Ambiance for October Heaven
Modish Bossa Guitar Trio - Background for Creative Spirits
Music for Great Lights - Bossa Guitar Trio with Jazz Organ
Jazz Sounds: Lounge Symphonies for Jazz Concentration
ピースフル・パウズ・イン・サマー
Silent Tapestry: The Roots of Jazz Music
Rooftop Views Unveil: Panoramic Jazz Music
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6c99dc929c34a605f65a96178de5b5ff99eb64bc3778f42b317641dc83e1dd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN2437265.