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 0x56b22e8c214098c82836e08b67ff4c1a14eee5bcae4a6c783adedb0c06a1d08e. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ea7b81c-be47-4847-a0c6-060e717694ea.json and https://artists.proofprofile.net/proofs/artist/8ea7b81c-be47-4847-a0c6-060e717694ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tenor Sax Jazz - Ambiance for Rejuvenation
Bossa Saxophone - Ambiance for Enjoying Life
Outstanding Music for Rejuvenation - Trumpet Jazz
Backdrop for Calming Moments - Calm Bossanova
Backdrop for Relaxing - Outstanding Double Bass
Double Bass Solo (Music for Staying Focused)
Dream Like Music for Studying - Double Bass
Exciting Tenor Sax Jazz - Ambiance for Lunchtime
Tenor Sax and Trumpet Solos (Music for Cool Cafes)
Trio Jazz - Background Music for Casual Restaurants
Music for Hotel Lounges - Thrilling Piano
Simple Jazz Trio - Background for Resting Easy
Magical Trio Jazz - Bgm for Resting Easy
Trio Jazz - Background Music for Top Restaurants
(Trumpet and Alto Saxophone) Music for Cocktail Nights
Music for Creative Daydreams (No Drums Jazz)
Music for Unique Thoughts - Marvellous No Drums Jazz
Wondrous Quartet Jazz - Ambiance for Vibrant Secrets
Quartet Jazz - Ambiance for Fun Traveling
Music for Summer Tones - Suave Jazz Quintet
Music for Laid Back Overtones (Jazz Quintet)
Jazz Violin - Background for Colorful Gambles
Smooth Jazz Guitar - Bgm for First Curiosity
Backdrop for Individual Rhythms - Harmonica Solo
Music for Chill Variety (Harmonica Solo)
Backdrop for Virtual Relaxation - Jazz Quintet
Charming Jazz Violin - Background for Virtual Relaxation
Acoustic Smooth Jazz Guitar - Ambiance for Intense Seconds
Bossa Guitar Trio - Ambiance for Mystical Monday
Majestic Bossa Guitar Trio - Background for Mystical Monday
Ballads for Jazz Piano: Uplifting Instrumental Music for Work
Jazz Paws: Lounge Serenades for Four-Legged Friends
Midnight Jazz Magic: Timeless Musical Gems