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 0x4b6f422cdac57892ba9e1147ffc46200c7006403e9954c1c68ecdad30adf49e8. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd3b73e4-096e-40a1-a155-cbbc6e1a0017.json and https://artists.proofprofile.net/proofs/artist/cd3b73e4-096e-40a1-a155-cbbc6e1a0017.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concentration Creek: Binaural Sounds of Nature and Birds
Music for Concentration: Study Zone Tunes
Litteraturens Verden: Brun Støj For Optimal Fokus
Optimer Din Studietid: Brun Støj for Øget Fokus
Akademisk Utopia: Brun Støj til Dybtgående Indlæring
Music For Studying That Opens The Mind To Still Focus
Lofi Work Tunes: Music for Mental Clarity
Lofi Study Harmonies: Focused Melodic Layers
Concentration Cadence: Focus Music for Clarity
Mental Resonance: Mind Concentration with Music
Tranquil Keys of Learning: Serene Piano Concentration
Lofi Focus Tones: Productive Sound Patterns
Il Canto Eterno dell'Anima Risuona Attraverso le Ere
Concentration Grooves: Music for Mental Focus
Focus Harmony: Music for Concentrated Minds
Tranquil Keys of Concentration: Piano Serene Mental Flow
Focused Excellence: Music For Concentration Mastery
Binaural Ocean for Study and Concentration
Focus Frequencies: Music for Concentrated Efforts
Celeste Solopgangs Læringssessioner: En Dans med Ords Skønhed
Jazz Bohemio na Aldeia Tranquila com Sons Lofi
Task Management Sounds: Chill Music for Concentration
Lofi Concentration Beats: Workday Melodies
Cognitive Melodies: Music for Focus and Study
Rain's Focus Rhythm: Music for Concentration
Lofi Focus Beats: Calming Sounds for Concentrated Work
Tidal Concentration: Ocean Work Melodies
Ocean's Focus: Ambient Sounds for Concentration
Binaural Fire Focus: Flame Concentration Sounds