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 0xb1ef9854611bd648210179ee967386eec25d8bcd9d4066677ac4dc0886763dce. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca9f53d7-4ec1-43f2-b634-c7abbb55d4d2.json and https://artists.proofprofile.net/proofs/artist/ca9f53d7-4ec1-43f2-b634-c7abbb55d4d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tenor Sax and Trumpet Solos (Music for Anxiety)
Bossa Saxophone - Background for Calming Moments
Astounding Bossa Saxophone - Ambiance for Calming Moments
Stylish Background for Afternoon Relaxation
(Electric Piano and Alto Saxophone Solo) Music for Cleaning
Music for Reading (Electric Piano and Alto Saxophone)
Music for Cooking at Home (Electric Piano and Alto Saxophone)
Urbane Jazz Piano - Background for Baking
Trio Jazz - Background Music for Cool Cafes
Music for Casual Restaurants - Dream Like Trumpet Jazz
Friendly Background Music for Stress Relief
Sunny Background Music for Unwinding Time
Distinguished Background Music for Mental Health
Trumpet and Alto Saxophone (Music for Resting Easy)
Backdrop for Sleepy Sundays - Excellent Trumpet and Alto Sax
Jazz Trio - Background for Top Restaurants
Heavenly Jazz Trio - Background for Divine Cuisine
Music for Divine Cuisine (Trumpet and Alto Sax)
Acoustic Smooth Jazz Guitar - Background for Working September
Backdrop for Atmospheric Power - Magnificent Harmonica Solo
Acoustic Smooth Jazz Guitar - Ambiance for Calming Taste
Music for Breezy Dreams (Jazz Organ and Guitar)
Jazz Organ and Bossa Guitar Trio (Music for Easy Going Days)
仕事中にぴったりの落ち着いたムードの音楽
肉球を持つ友達への癒しミュージック