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 0x4ae4cfca324481b8341035380dc3d99c38fc216dfea6126dfb36b7d1687b8afc. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5aa75c8c-bfa9-4565-ac97-ec6e064764b2.json and https://artists.proofprofile.net/proofs/artist/5aa75c8c-bfa9-4565-ac97-ec6e064764b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cozy Winter Spa - 30 Songs with Nature Ambient Background for Quiet Moments
Winter Piano Tracks - Relaxing, Peaceful Piano Solos for Snowy Evenings & Falling Asleep
Relaxing Soundtrack - Chilled out, Instrumental Tracks with a Relaxing and Ambient feel
WinterTime Sleep Music: Cozy Winter Deeply Relaxing Songs for Staying in Bed, Sleeping Academy
Winter Sadness Jazz: Smooth Jazz for Soft, Cozy Background on Cold Winter Nights
The Christmas Spa Special: Beautiful Xmas New Age Songs for Yoga & Meditation
Winter Break 2020: Relaxing Music for the School Christmas Break, Calming Music for Winter Holidays
Hiphop Christmas Hits: Winter Holiday 2020 2021 Mix, Traditional Songs to Chill at Night
Christmas & Chill 2021: Coffee Break Chillout Classics for Snowy Christmas Days
Christmas Jazz Jam: Smooth & Chill Christmas Guitar
Velvet Christmas Lounge: Soulful & Cozy Holiday Time Carols