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 0xc52ed658187fde321dc9953bf2699d5882a5866e632b4999bcddb79aae2efc34. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c258c5f7-1c03-439b-8e3e-c3f1dfac2696.json and https://artists.proofprofile.net/proofs/artist/c258c5f7-1c03-439b-8e3e-c3f1dfac2696.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Backdrop for Home Cats - Stylish Trumpet and Alto Sax
Music for Comfy Cats - Uplifting Trumpet and Alto Sax
Music for Home Cats (Trumpet and Alto Sax)
Trumpet and Alto Saxophone (Music for The Happiest Cats)
Trumpet and Alto Saxophone - Music for Comfy Cats
Trumpet and Alto Saxophone - Music for Happy Cat
Music for Happy Cat - Trumpet and Alto Sax
Simple Latin Trumpet - Ambiance for Relaxing Pet Sounds
Backdrop for Anxious Cat - Debonair Latin Music
Breathtaking Background Music for Calming for Cats
Latin Guitar - Background Music for Territorial Kittens
Backdrop for My Quiet Cats - Jazz Quintet
Hot Music for Loving Cats - Jazz Quintet
Quintet Jazz (Music for Unwinding Kittens)
Acoustic Smooth Jazz Guitar - Ambiance for Nocturnal Cats
Fashionable Acoustic Smooth Jazz Guitar - Ambiance for Peaceful Times with Cat
Guitar Solo - Music for Peaceful Times with Cat
Acoustic Smooth Jazz Guitar - Ambiance for Lounging Kittens
Music for Comfortable with Cats - Contemporary Soprano Sax Solo
Superlative Music for Pure Cats - Soprano Sax Solo
Music for Comfortable with Cats - Soprano Sax Solo
Cool Quartet Jazz - Background for Classic with Cats
Cheerful Background for The Cutest Kitten
Gentle Cat Tunes: Music for Cats' Serenity
Music for Relaxing Cats: Quiet Night Songs
Melodies for Feline Moods: Cat's Whisker Waltzes
Gentle Cat Harmonies for Calming Atmosphere