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 0x444d22ae9576ace8c9ddd0243599b7cdf82de145d324272fa374314f3514d5c5. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24c071f1-6574-4e80-85ce-342b9658818e.json and https://artists.proofprofile.net/proofs/artist/24c071f1-6574-4e80-85ce-342b9658818e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dog Music Pet Therapy: Deep Separation Anxiety Music for Dog Relaxation
(Acoustic Guitars Solo) Music for Puppies
Tenor Sax Jazz - Background for Separation Anxiety
Sultry Trio Jazz - Bgm for Serene Puppies
Bright Trio Jazz - Bgm for Serene Puppies
Tenor Sax Jazz - Background for Sleepy Pups
Music for Well Behaved Dogs - Bubbly Trumpet Jazz
Music for Relaxing Your Dog - Mellow Bossa Nova Vibraphone
Music for Separation Anxiety - Mind-blowing Trumpet Jazz
Music for Doggy Wellness - Bossa Nova Vibraphone
Music for Doggy Mental Health - Trumpet Jazz
Modish Tenor Sax Jazz - Background for Separation Anxiety
Jazz Ballad - Background Music for Resting Dogs
Rain Music: Forest Rainfall Shower For Spa
Piano and Glockenspiel - Ambiance for Dog Naptime
High Class Background Music for Chill Dogs
Outstanding Trumpet Solo - Ambiance for Puppy Sleep
High-class Music for Calming Puppy - No Drums Jazz
Jazz Guitar Solo - Bgm for Calming Puppy
Trumpet Solo - Ambiance for Calming Puppy
Jazz Guitar Solo - Background Music for Calming Puppy
Heavenly Tenor Sax Jazz - Ambiance for Happy Dogs
Music for Chilling Doggies - Trumpet Jazz
Dream-Like Music for Calming Pups - Trumpet Jazz
Stellar Music for Happy Pups - Trumpet Jazz
Relaxation: Refreshing Nature River Sound Vol. 1
Fire: Gentle Wind Sound Soothing Relaxation Vol. 2
Mind Calming BINAURAL Clacketing Music Vol. 1
Ambient Rain: Calming Sounds for Scared Pets Vol. 1
Chill Your Dog Out with Piano Music, Baby Dog Sleep
Ambient Chill and Relax: Dogs' Naptime Dreaming
Lofi Dog Retreat: Mellow Beats for Relaxing with Your Pup
Dog's Rainy Relaxation: Soothing Sounds for Canines
Canine Cadence: Music for Dogs Relaxation
Dog's Day Out: Playful Tracks for Canine Ears
Dogs' Evening Rest: Chill Music for Calm