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 0x4d1749763ba4e2762df0fbfa2939785526e1ef823d470ba7994f7303fdec9351. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0f39ca6-2b92-413d-bf87-4719bad7b3af.json and https://artists.proofprofile.net/proofs/artist/a0f39ca6-2b92-413d-bf87-4719bad7b3af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x66dd5d446ca5c65385de75def15dcd988676d584ee73c6e7605924e4eba63b83. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBSMU9432132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bafa08dd3e0b978edc74d4489dae9268ea8877baa9df3490054f887fd4ddee. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBSMU9432136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced89c7d007c1b473954e9836efdace5cc4da065def774d78642e866586150a6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBSMU9432141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c92aebb537a09415256463e90d5ad3ccf990748d6e594027aa0c7b3a0fb1ae. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/GBSMU9432146.
Backdrop for Morning Coffee Thoughts - Vibraphone and Tenor Saxophone
Retro Jazz Quartet - Background for April Inspirations
Vibraphone and Tenor Saxophone Solos - Music for Morning Coffee Thoughts
Music for Spring Creativity - Lovely Vibraphone and Tenor Saxophone
Backdrop for April Inspirations - Vibraphone and Tenor Saxophone
Quartet Jazz - Background Music for Relaxing with Coffee
Music for Unique Perspectives (Vibraphone and Tenor Saxophone)
Backdrop for Caffe Lounges - Vibraphone and Tenor Saxophone
Refined Jazz Quartet - Background for Late Night Unwinding
Jazz Quartet - Ambiance for Refreshing Coffee Beverages
Stellar Music for Caffe Lounges - Vibraphone and Tenor Saxophone
Breathtaking Background Music for Classic Concentration
Music for Social Feelings - Jazz Guitar Solo
Quartet Jazz - Ambiance for Relaxing Controller
Music for Mellow Trips - Trumpet, Soprano Sax, Tenor Sax and Guitar
Saxophone Bossa - Background Music for Soft Traveling
Music for Mellow Trips - Exquisite Trumpet, Soprano Sax, Tenor Sax and Guitar
Smooth Jazz Sax (Music for Inspiring May)
Music for Vacations in May (Trumpet, Electric Piano, Alto Sax and Soprano Sax)
(Tenor Sax Solo) Music for Slacking Off Sundays
Music for Kitchen Moments - Astounding Jazz Organ and Guitar
Backdrop for Early Summer Changes - Lovely Trumpet, Electric Piano, Alto Sax and Soprano Sax
Backdrop for May Moods - Trumpet, Electric Piano, Alto Sax and Soprano Sax
Music for Summer Styling - Fashionable Jazz Guitar Solo
Music for Colorful Keynotes - Jazz Quintet
Bubbly Background Music for Jazz and Chill
Music for Stopping Work - Peaceful Jazz Quintet
Backdrop for Soft Melodies - Trumpet, Soprano Sax, Tenor Sax and Guitar
Music for Soft Melodies - Exquisite Trumpet, Soprano Sax, Tenor Sax and Guitar
Cultivated Music for Summer Songs - Jazz Quartet
Hot Trumpet Bossa - Ambiance for Mind Hours
Sensational Trumpet Bossa - Background for Calm Reflections
Fantastic Jazz Trio - Ambiance for Deluxe Summer Time
Vibrant Trumpet Bossa - Background for Staying Cool
Backdrop for Morning Wellness Coffee - Atmospheric Trumpet, Soprano Sax, Tenor Sax and Guitar
Music for Last Minute Holidays - Jazz Organ and Guitar
Extraordinary Music for Dawning Lights - Latin Music
Music for Essential Thoughts - Opulent Jazz Guitar Solo
Music for Cold October Nite - Inspired Latin Music
Music for Autumns Vibrations - Quiet Jazz Quintet
Funky Organic Guitar Music - Ambiance for Classy and Coffee
Marvellous Latin Trumpet - Background for Hometown Trips
Backdrop for Morning Victory - Extraordinary Jazz Organ and Guitar
High-class Ambiance for Reflection Sounds
Fiery Background for Soft Winter Moments
Brilliant Trio Jazz - Bgm for Quiet Coffee Time
Easy Listening Piano - Background for Calm Coffee and Work
Bossa Nova Piano Duo - Bgm for Sure Visions
Swanky Music for Brave Keynotes - Acoustic Guitars
Elegant Piano Bossa Duo - Ambiance for Higher Illusions
Music for Sure Visions (Piano Bossa Nova Duo)
Lively Easy Listening Piano Music - Bgm for New Workflows
(Quintet Jazz) Music for November Nocturnal
Friendly Music for Perfect Ones - Piano Duo
Jazz Piano Duo - Music for Energetic Times
Remarkable Background for November Nocturnal
Quintet Jazz (Music for Nocturnal Nights)
Jazz Violin - Ambiance for Occassional Happenings
Backdrop for Brave Afternoons - Piano Duo
Paradise Like Jazz Quartet - Bgm for Winter Balancing
Music for Winter Balancing - Jazz Guitar Solo
Music for A Long Winter’s Day - Artistic Jazz Guitar Solo
Son Montuno - Music for No Stress December
Backdrop for Every Holiday - Inspiring Latin Music
Jazzy Coffee Shop: Smooth Lounge Melodies for Dogs
Dynamic Work Jazz: Piano Melodies for Ambition