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 0x89e96827007fb617f8155d39fb7b4b4b60175d81d7469cb622d7b70f1e7f5949. 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/cc2f54cc-9c4a-42e5-aaab-cd28393276af.json and https://artists.proofprofile.net/proofs/artist/cc2f54cc-9c4a-42e5-aaab-cd28393276af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mente Calma: Música Lofi Relajante Para Estudiar
Café Y Concentración: Chill Lofi Hip-Hop Para Estudiar
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xc89dbe5c78e616d95d5a6c11a12ff438458a1d7cc29b4037d75f491374af491f. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2331490.
Ambiente Tranquilo: Música Lofi Para Un Trabajo Y Estudio Profundo
Serenata De Lluvia: Un Estudio Inspirador Con Un Paisaje Sonoro De Tormentas
Melodías Mentales: Un Compañero De Estudio Y Música De Lluvia
Sinfonía De Truenos: La Serenata Para El Estudio Centrado Y El Aprendizaje
Estudios Nocturnos: Musica De Ambiente Lofi Para Leer
Una Banda Sonora De Lofi: Canciones De Relajación De Lofi Para Leer Y Estudiar Toda La Noche
Tiempo De Lofi: Estados De Ánimo Inspirados Para Estudiar
Una Cinta De Mezclas Lofi: Ritmos Lofi Relajantes Para Leer Y Estudiar Durante Horas
Recuerdos Lofi: Dulce Música Lo-Fi Para Leer Y Estudiar Durante Horas
Lofi En Mi Mente: Ritmos Serenos De Lofi Para Estudiar / Trabajar / Leer
Zen De Estudio Lofi: Música Para El Aprendizaje Y El Tiempo De Estudio
Descanso De Estudio Lofi: Canciones Suaves Para Un Descanso Cerebral
Música Lofi Para El Estudio: Lofi Para La Mejora Cognitiva
Ecos De Flujo De Estudio: Sonidos Ambientales Con Música Relajante Lofi
Sonidos De Estudio: Vibras De Lofi Para Estudiar Eficazmente
Estudio Tranquilo: Vibraciones Lofi Para El Tiempo De Estudio Productivo
Música De Estudio Pura: Beats Lofi Para La Noche
Lofi Para El Estudio: Atmosfera De Aprendizaje Ambiental
Street Rhythms: The Sound of Hip Hop Music
Sleep State: Hip Hop Music for Restful Nights
Relaxing Hip Hop Beats for a Good Night’s Sleep
Golden Hour: Hip Hop for Pure Relaxation
Study Relaxation with Gentle Lofi Harmonies
Modo De Enfoque Profundo: Música Hip Hop Para Estudio Y Trabajo