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 0x63f96fc45c1f896fd6d0d0b4f9664a50511f6119c3626de367e924b6aec2d356. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac907a0d-f95c-4fa0-8bd5-0bf4908b7056.json and https://artists.proofprofile.net/proofs/artist/ac907a0d-f95c-4fa0-8bd5-0bf4908b7056.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Astonishing Jazz Trio - Ambiance for Deep Work
Music for End of Winter - High Class Trumpet and Alto Sax
Music for Welcome Changes - Mind-blowing Trumpet and Alto Sax
(Jazz with Strings) Music for Eating Well
Lonely Music for Cool Dining - Jazz Ballad
Brilliant Jazz Trio - Ambiance for Luxury Dining
Vintage Latin Big Band - Ambiance for Fresh Starts
Debonair Music for Classical Ambience - Jazz Guitar Solo
Quartet Jazz - Ambiance for Mood Enhancers
Music for Perfect Seasons - Soprano Sax Solo
Fun Quartet Jazz - Bgm for Perfect Seasons
Music for Chilled June Nights - Jazz Quintet
Vibraphone and Tenor Saxophone Solos - Music for Home Cooking
Piano Bossanova Duo (Music for Daily Moment)
Music for Evening Intros - Cool Piano Bossa Nova Duo
Dream Like Music for Retro Drives - Piano Bossa Nova Duo
Coffee Shop Serenade: Acoustic Folk Jazz Relaxation Melodies
Euphonic Jazz Odyssey: Coffee Lounge Chronicles
Harmonic Elegance: Jazz Piano in the City