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 0x6bd9a26b68277559dd35f57b047f8b167f6233a68e9a22caef2d96578b1df72a. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f1f02a0-7002-4943-a5a9-eb6754f7e6ea.json and https://artists.proofprofile.net/proofs/artist/0f1f02a0-7002-4943-a5a9-eb6754f7e6ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tenor Sax Jazz - Ambiance for Afternoon Reading
Uplifting Music for Springtime Stays - Trumpet and Alto Sax
Music for Repetitive Work - Groovy Trumpet, Alto Sax and Tenor Sax
Music for Repetitive Work - Tasteful Trumpet, Alto Sax and Tenor Sax
Understated Ambiance for Devoted Inspiration
Music for Spring Hideaways - Sprightly Soprano Sax Solo
Incredible Jazz Violin - Ambiance for Chilled June Nights
Backdrop for Classic Verses - Jazz Quintet
Music for Virtual Relaxation - Jazz Quintet
Backdrop for Virtual Relaxation - Dashing Jazz Quintet
Music for Cinematic Melody (Piano Bossa Nova Duo)
Exciting Music for Sleeping Darkness - Piano Bossa Nova Duo
冷たいジャズトラックで植物を育てよう
Cool Cats: Jazz Tribute to Feline Friends
Jazz Sounds: Serene Lounge Music for Contented Dogs
Meditation Lounge: Coffee Shop Jazz Sounds
Ancient Walls Echo: Historical Jazz Music
Serenade for Baby Sleep: Melodic Jazz Piano