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 0x34484bf946159e02f482dea9fc404949cdf40f7dfdd74c6e7ef3c43dba5fa1aa. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b991193d-ccba-48ec-9e65-484c9f3d2956.json and https://artists.proofprofile.net/proofs/artist/b991193d-ccba-48ec-9e65-484c9f3d2956.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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Feline Fantasia: Piano Tunes for Cat's Delight
Dreamy Jazz Piano Serenity: Calming Massage Moments
Ethereal Jazz Piano Focus: Tranquil Concentration Reflections
Serenade of Tranquility: Cat Haven in Reflective Piano
Piano's Calming Oasis: Serenity for Furry Friends
Ondas De Jazz Atemporales: Almas De Piano
Armonía Del Río: Piano Calmo Para La Relajación Y La Renovación
Teclas Melódicas: Sonidos De Piano Para La Concentración
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Sonata De Medianoche: Sonidos De Piano Meditativos Para Un Sueño Profundo
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Crónicas De Un Piano Armónico Para Mascotas: Unión A Través De Las Melodías
Bocetos De Cielos Estrellados: El Piano Pinta Sueños Cósmicos En Teclas Etéreas
Pulso De La Tierra: Ritmos De Piano En Llanuras Con Viento Y Ríos Rugientes
Sinfonía Estrellada: Ecos De Canciones De Cuna Desde La Vía Láctea
Piano Para Perros: Rítmica De Ladridos Alegres
Piano Para La Conciencia Plena: Melodías Reflexivas Para La Meditación
Piano Para Gatos: Melodías Relajantes Para Felinos
Confort Para Mascotas: Ritmos De Piano Para Acompañar
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 0x538b1b9f832e66b6c33044eebb650bcbedb706999ea18eee92ebb4196722f415. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBRKQ2447497.
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