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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3ed3fa697e4437c5aa579046a645f6cea0da12b44ddd0fc7f7f333872159ab. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbe7c9fc-ee47-4366-bb2c-0483efddae32.json and https://artists.proofprofile.net/proofs/artist/fbe7c9fc-ee47-4366-bb2c-0483efddae32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Calm Puppies - Deluxe Trumpet and Alto Sax
Elegant Jazz Trio - Background for Calm Puppies
Music for Calming Pups - Sophisticated Trumpet and Alto Sax
Bubbly Trio Jazz - Bgm for Doggy Mental Health
Music for Separation Anxiety (Trumpet Jazz)
Backdrop for Mans Best Friend - Trumpet Jazz
Smart Jazz Ballad - Bgm for Resting Dogs
Carefree Music for Sleepy Dogs - Glockenspiel Music
Grand Music for Doggy Wellness - Glockenspiel Music
Music for Dog Mental Health - Wondrous Glockenspiel Music
Peaceful Trio Jazz - Bgm for Calming Your Puppy
Guitar Chill Out - Background for Well-Trained Doggies
Music for Dog Stress - Fashionable Chill Out Guitar
Music for Dog Stress - Sophisticated Chill Out Guitar
Guitar Chill Out - Background Music for Resting Doggy
Backdrop for Behaving Dogs - Cultivated Chill Out
Magnificent Background for Sleepy Puppies
Peaceful Smooth Jazz Chill Out - Ambiance for Sleepy Puppies
Music for Lonely Dog (Trumpet, Electric Piano, Alto Sax and Soprano Sax)
Smooth Jazz - Background Music for Doggy Bedtime
Trumpet Smooth Jazz - Ambiance for Lonely Dog
Refined Jazz Violin - Ambiance for Midsummer Pups
Exciting Music for Nature and Dogs - Jazz Quintet
Fire Ambience: Sounds of Burning Wood of Bonfire Vol. 2
Music For Dogs: Soothing Rain & Thunder Atmosphere To Calm Your Dog
Piano Bossa Duo - Background for Autumn and Puppies
Music for Autumn and Puppies - Piano Bossa Nova Duo
Marvellous Piano Bossa Duo - Background for Doggy Night Walks
Bossa Nova Piano Duo - Bgm for Autumn and Puppies
Pet Relaxation: The Best Ocean Music To Relax Cats & Dogs
Acoustic and Electric Piano Jazz Duo - Bgm for Puppy Training Time
Acoustic and Electric Piano Jazz Duo - Background Music for Doggo Resting
Tranquil Tails: Serene Melodies for Dogs' Relaxation
Cosmic Canine Connections: Music for Dogs' Bonding
Whimpers & Whispers - Emotional Music for Sensitive Dogs
Music for Pets: Furry Serenade in Velvet Tones
Dog's Rainy Day: Calming Sounds for Canine Relaxation