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 0xd9434f2367b2ba45da023a307bacfb77d1e4d5a9d6881c59f8bd338be7191287. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/500db19c-f7b9-473c-bf56-89ed970c9a73.json and https://artists.proofprofile.net/proofs/artist/500db19c-f7b9-473c-bf56-89ed970c9a73.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Even Green Collection of Fireplace Sound
The Christmas Fire and Sweet Dreams when All is Right
Firelight Reflections: Nature's Chill for Serene Meditation
Crackling Embers: A Cozy Fire Sound for Deep Sleep
Fire Melodies: String Chill Sound for Serene Massage
Mellow Fireside: Strings' Chill Melodies for Deep Concentration
Ember's Binaural Bliss: Ambient Fire's Spa Symphony
Igniting Fire Ambient Stillness: Binaural Tones of Yoga Serenity
Feline Serenade: Firelit Piano Cat Melodies
Yoga by the Hearth: Fire's Chill Sound for Balance