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 0xfae1d2c49dda59ae62d23872e32f71681fe24857d58a7d478ba1ecaedaddf665. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf116ffb-b431-4d87-821b-86479982d1b2.json and https://artists.proofprofile.net/proofs/artist/bf116ffb-b431-4d87-821b-86479982d1b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Superlative Trio Jazz - Bgm for Resting Easy
Backdrop for Searching for Creativity - Trumpet, Alto Sax and Tenor Sax
Smooth Backdrop for Channeling Positivity
Music for Lazy Days - Trumpet and Alto Sax
Dream Like Music for Luxury Dining - Trumpet and Alto Sax
Scintillating Bgm for Comforting Cacophony
(Soprano Sax Solo) Music for More Feelings
Quartet Jazz - Ambiance for Comforting Cacophony
Tenor Sax Solo - Music for Romantic Notes
Breathtaking Music for Silent June - Soprano Sax Solo
Music for Luxurious Hotel Getaways (Soprano Sax Solo)
Quartet Jazz - Ambiance for Fun Traveling
Jazz Violin - Background for Laid Back Overtones
(Guitar Solo) Music for Relaxing Experiences
Backdrop for Calculated Hours - Mind-blowing Harmonica Solo
Subdued Trio Jazz - Bgm for Reclining Afternoons
Jazz Organ and Guitar Solo (Music for Lazy Chairs)
Music for Pure Moments - Opulent Piano Duo
Subtle Music for Pure Moments - Piano Duo
Bossa Guitar Trio - Ambiance for Great Lights
読解力を上げるためのくつろぎのジャズ
スムーズなソフトジャズでリラックス
植物のためのリラクゼーション音楽
Calm and Renewal: Elevate with Music for Spa
Serene Pet Naptime: Ambient Rainfall Pet Harmony
Soothing Escape: Music for Peaceful Relaxation
Relaxing Mindful Melodies: Chill Music for Relaxation
Soothing Repose: Chill Music for Relaxation
Rhythmic Paths: Gentle Music for Everyday Moments
Music for Serenity: Gentle Spa and Massage Tones
Quiet Slumber Nights: Soothing Tunes for Deep Rest