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 0x8f37b268af410846c3be266b840dc1db937fd5c35ca827f9facd49a5a911487c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c9ffeaf-7bc2-48f8-b695-fe2f79680b93.json and https://artists.proofprofile.net/proofs/artist/3c9ffeaf-7bc2-48f8-b695-fe2f79680b93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Backdrop for Focusing on Work - Big Band with Vibraphone
Music for New Vibes - Trumpet, Alto Sax and Tenor Sax
Bebop Jazz - Music for Searching for Creativity
Cultivated Trio Jazz - Bgm for Chilling in March
Music for Hotel Bar (Trumpet and Alto Sax)
Spectacular Jazz Guitar - Ambiance for Fashionable Eateries
Suave Trio Jazz - Bgm for Cocktail Nights
Sensational Latin Big Band - Ambiance for Seasonal Stories
Music for Comforting Cacophony (Jazz Guitar Solo)
Music for Energetic Feelings - Jazz Guitar Solo
Quartet Jazz - Ambiance for Romantic Heartbreak
Music for Fun Memories - Heavenly Trumpet Jazz
Music for Private Daydreams - Sublime Bossa Guitar Trio
Music for Private Daydreams - Bossa Guitar Trio
Music for Visual Channels - Funky Bossa Guitar Trio
Guitar Trio - Ambiance for Relaxing Feelings
Uplifting Ambiance for Peaceful Thursday
Acoustic and Electric Bossa Nova Piano Duo - Bgm for Acoustic Shapes
Jazz Piano for Pets: A Night of Relaxation