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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e28e29c98ceab12d381629f60ba0b8cb2dff34c88e28dcc36a96151b4e1b13. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb2bc05a-72c5-43c9-9acd-3c5bb2268a3f.json and https://artists.proofprofile.net/proofs/artist/eb2bc05a-72c5-43c9-9acd-3c5bb2268a3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Joyful Guitar Chill Out - Ambiance for Coffee with Sunrise
Atmospheric Music for Cold Night - Trumpet, Electric Piano, Alto Sax and Soprano Sax
Music for Relaxing Spring Time (Trumpet, Electric Piano, Alto Sax and Soprano Sax)
Stellar Trumpet Smooth Jazz - Ambiance for London Espresso Bars
Music for London Espresso Bars (Trumpet, Electric Piano, Alto Sax and Soprano Sax)
Heavenly Background Music for Low Key Mornings
Music for Low Key Mornings - Soprano Sax Solo
Music for Chill Imaginations - Simplistic Soprano Sax Solo
Music for Summer Routines (Soprano Sax Solo)
Hip Music for June Love - Soprano Sax Solo
Spirited Background Music for Summer Routines
Vintage Quartet Jazz - Ambiance for Sixth Senses
Brilliant Music for Summer Vibrations - Soprano Sax Solo
Smoky Quartet Jazz - Background for Sunday Morning Relaxings
Jazz Trio - Ambiance for Redemption Mode
Wicked Ambiance for Morning Coffee and Chill
Bright Quartet Jazz - Ambiance for Decompressing and Coffee
Energetic Background for Decompressing and Coffee
Music for Calming Down Lounges - Acoustic Guitars
Music for A Mellow Memory - Energetic Acoustic Guitars
Piano Bossanova Duo - Music for Sweet Clouds
Charming Quartet Jazz - Background for Peaceful Smiles
Music for Courageous Friday - Sensational Soprano Sax Solo
Astounding Background Music for Gold Winter
Marvellous Music for Sure Laughter - Jazz Quintet
Backdrop for Sure Laughter - Lonely Jazz Quintet
Easy Listening Piano - Background for Winters Love
High Class Jazz Organ - Bgm for Life Lists
Number One Background Music for Upbeat Ways
Excellent Ambiance for Noteworthy Events
Music for Nocturnal Nights - Divine Jazz Quintet
High-class Background Music for Comforting Reflections
(Piano Bossanova Duo) Music for Chilled Minutes
Hot Jazz Violin - Background for Old-Fashioned Originals
(Piano Bossanova Duo) Music for Chill Out Reflections
Entertaining Piano Bossa Duo - Background for Comforting Reflections
Majestic Music for Warm Sounds - Harmonica Solo
Quartet Jazz - Background for Jolly Victory
Classic Music for Coffee House Winters - Latin Music
(Jazz Organ and Guitar Solo) Music for Breezy Winter Feels
Backdrop for Vague Details - Jazz Organ and Guitar
Jazz Piano Duo (Music for January Surprises)
Casual Music for Luxurious Holiday - Piano Duo
Piano Jazz Duo - Background for New Year Spirits
Alto Sax Solo (Music for Hanging Loose Nights)
Backdrop for Mellowing Fridays - Alto Sax
Peaceful Jazz Guitar - Bgm for Colorful Unwinding