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 0x4edbe92d21af3594f8f7c872cedd9401a5ceab77a12ee487511263ad2468e9d1. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccbef224-6172-4e44-b89c-6476fab0629b.json and https://artists.proofprofile.net/proofs/artist/ccbef224-6172-4e44-b89c-6476fab0629b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Cool Offices - Hot Trumpet and Alto Sax
Trumpet and Alto Saxophone (Music for Deep Work)
Music for Mental Health Improvement - Trumpet Jazz
Music for Rainy Days - Pulsating Trumpet Jazz
Grand Background Music for Mental Health Improvement
Backdrop for Mental Health Improvement - Trumpet Jazz
Backdrop for Resting Easy - Cool Trumpet and Alto Sax
Music for Busy Weekdays - Dream Like Trumpet and Alto Sax
Bright Music for Afternoon Tea Time - Trumpet and Alto Sax
Jazz Trio - Background for Fun Luncheons
Trumpet and Alto Saxophone (Music for Coffee and Lunch)
Music for Casual Fridays - Trumpet and Alto Sax
Wondrous Music for Gold Collection - Harmonica Solo
Sublime Tenor Sax Jazz - Background for Pleasant Homes
Retro Bossa Nova Piano Duo - Bgm for Chill Out Reflections
Piano Bossa Duo - Ambiance for Amusing Earth
Hypnotic Background for Comforting Reflections
リラックス・アンド・リチャージ
Jazz Lounge Spa Serenade for Pampering Moments
Piano Jazz Mindfulness: Concentrated Improvisations
ジャズとパーフェクト・ヴォヤージュ
秘密のガーデンのサウンドトラック
自然が迎える朝のサウンドトラック
Street Corner Grooves: Ambient Jazz Music
Classic Groove Revamp: Jazz Music Rhythm