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 0x125c84cf33ff276c6934ebe27eb7e8a97c31f4d0843fa712e524c92016cac019. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e0e704f-c9ab-4c7b-8f61-617e9a2619e5.json and https://artists.proofprofile.net/proofs/artist/8e0e704f-c9ab-4c7b-8f61-617e9a2619e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Remarkable Bossa Quintet - Bgm for Sleepy Pups
Music for Separation Anxiety - Trumpet Jazz
Trio Jazz - Background Music for Doggy Mental Health
Bossa Quintet - Bgm for Relaxing Your Dog
Tenor Sax Jazz - Background for Well Behaved Dogs
Music for Well Behaved Dogs - Magical Trumpet Jazz
Tenor Sax and Trumpet Solos (Music for Sleepy Pups)
Tenor Sax Jazz - Background for Mans Best Friend
Music for Mans Best Friend - Vibrant Trumpet Jazz
Fun Music for Dogs at Home Alone - Bossa Nova Vibraphone
Vibraphone Solos - Music for Doggy Wellness
Dashing Music for Chill Dogs - Trumpet and Alto Sax
Backdrop for Doggy Rest Time - Trumpet and Alto Sax
Bubbly Piano and Bell Music - Bgm for Dog Naptime