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 0x8524081bfb80522edbcf9db010239968f27161eff0ed860d36f72498ce649d55. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a43e3798-5cf3-4b46-bb30-bbc9c3401725.json and https://artists.proofprofile.net/proofs/artist/a43e3798-5cf3-4b46-bb30-bbc9c3401725.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Extraordinary Bgm for Exhausting Puppy Energy
Music for Doggy Baths - Calm Jazz Quintet
Music for Well Rested Dogs - Romantic Jazz Quintet
(Quintet Jazz) Music for Puppy Playing Outside
Quartet Jazz (Music for Doggy Soundtrack)
Phenomenal Music for A Lovely Dog - Jazz Quartet
Excellent Music for Doggy Grooming Days - Jazz Quartet
Bari Sax Jazz - Bgm for The Sleepy Hounds
(Quartet Jazz) Music for Doggy Grooming Days
Backdrop for Scruffy Dog - Modern Jazz Quartet
Backdrop for A Calming Pup - Groovy Jazz Quartet
Acoustic and Electric Piano Jazz Duo - Bgm for Puppy Training Time
Music for Lovely Hounds - Cool Jazz Quintet
Thrilling Jazz Violin - Ambiance for Lazy Chill Dogs
Jazz Piano Duo - Background for Puppy Training Time
Lonely Jazz Violin - Ambiance for Lazy Chill Dogs
Music for Cute Dog Behavior (Jazz Quintet)
Paradise Like Music for A Pleasant Puppy - Jazz Quintet
High Class Music for Doggy Work - Piano Duo
Majestic Ambiance for Puppy Mental Health
Easy Listening Piano Music - Bgm for Days for Dogs
Quintet Jazz (Music for Perfect Puppies)
Understated Background for A Peaceful Pup
Music for Perfect Puppies - Wonderful Jazz Quintet
Atmospheric Jazz Organ - Bgm for Dog Memories
Quintet Jazz (Music for Calming Your Cancine)
Easy Jazz Violin - Ambiance for Doggy and Lullaby
Mind-blowing Ambiance for Staying Warm Pups