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 0x6ce5f764d836d1a819ef1bb6a0219f78153656e1abf1fd0427262a39356e1fce. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c376eb85-639e-4712-a1dc-383a501bbb02.json and https://artists.proofprofile.net/proofs/artist/c376eb85-639e-4712-a1dc-383a501bbb02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Ultimate Jazz Collection – Easy Listening, Mellow Music Café, Time for Love and Romance, Sweet Fantasy and Relaxation, Liquid Piano Atmosphere
Unwind with Jazz – Pleasant Soundtrack for Having a Good Time, Destress After Work, Perfect Nightlife Mood with Lovers
Smooth Jazz for the Weekend – Jazz Relaxation, Cool Down with Jazz, Peaceful Piano, Pleasure & Easy Listening, Soft Music, Lazy Weekend
Morning Jazz Mix - Relaxing Cafe Music, Jazz Instrumental Mood, Café Bar Restaurant Background, Jazz for a Perfect Day
Jazzy Refreshing Morning – Positive Instrumental Music, Coffee Time, Boost Your Good Mood, Smooth Jazz Lounge
Jazz lounge musik - Avkopplande melodier, Smooth piano och gitarr, Romantisk saxofon
Instrumental Jazz Songs – Swing Music, Relaxing Smooth Mood, Everyday with Jazz, Gold Selection
Ambient Piano Lounge - Magical 30 Piano Bar Tracks, Relaxing Moments 2019, Soft Jazz Melodies
Relaxing Fashion Show: Having a Good Time with Friends, Destress After Work, Perfect Morning Mood
Sunset Jazz by the Ocean - Thrilling Jazz, Best Spring Collection, Fresh Jazz Relax, Bright & Smooth Compilation, Sunny Jazz
Chill Jazz Collection 2022: Mellow Sax Evening Jazz Vibes and Smooth Piano Jazz Music for Total Relaxation
Wine Jazz Music and Pleasant Evening Dinner: Relaxing Instrumental Jazz Music
Coffee House Jazz: Getting Energized for Long Day (Instrumental Background Music)
Sunny Street Dinner: French Guitar Jazz for Restaurant Patio
Smooth Sips and Lemon Tea: Groovin' & Loungin' R&B
Weekend in the Quiet Comfort of Your Home