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 0x40c9312bb79562350495ea23ceec5057caf7daf860daad9dc12f541735509595. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f84a5cc-24c2-44ab-979e-8ef235ef7c76.json and https://artists.proofprofile.net/proofs/artist/4f84a5cc-24c2-44ab-979e-8ef235ef7c76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Backdrop for Upbeat Moods - Delightful Trumpet, Soprano Sax, Tenor Sax and Guitar
Music for Rhythm (Trumpet, Soprano Sax, Tenor Sax and Guitar)
Music for Smooth Mornings (Trumpet, Soprano Sax, Tenor Sax and Guitar)
Backdrop for Study and Summers - Fashionable Jazz Guitar Solo
Quartet Jazz - Background for Chill Work Weekends
仕事中にぴったりの落ち着いたムードの音楽
コーヒーを飲みながらくつろいだ日曜日
Raindrop Office Symphony: Work with Drizzling Madrigal
Relaxation Music: Serene Melodic Retreat
Sleepscape Visions: Chill Music for Dreamy Nights
Zen Garden: Tranquil Sounds for Meditation
Relaxation Journey: Soothing Ease Sounds
Serenity Music for Relaxation: Gentle Sounds
Harmony for Dogs: Relaxing Tunes for Canine Calm
Music for Relaxation: Smooth and Gentle Tones
Soothing Night: Calm Melodies for Serene Moments