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 0x14a15ff928f65b84500ffd680fe63466c0f3b8eaa004de295242a48075335061. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e73a66f-03d9-42c9-8c24-bcc63e375fad.json and https://artists.proofprofile.net/proofs/artist/9e73a66f-03d9-42c9-8c24-bcc63e375fad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Confort Lofi: Melodías Suaves Para Perros
Lofi Para La Armonía De Las Mascotas: Sonidos Relajantes Para Animales
Música Lofi Para Relajación En El Spa: Armonías Reconfortantes
Armonía Para Dormir: Lofi Que Fluye Suavemente
Sueños Lofi Para Bebés: Melodías De Ensueño Pacíficas
Compañeros De Lofi: Melodías De Relajación Para Mascotas
Notas Pacíficas De Mascotas: Música Relajante Para Mascotas
Lofi Por La Noche: Armónicos Del Sueño Del Bebé
Noches De Serenidad: Sonidos Lofi Para Dormir
Música Para La Alegría: Ritmos Musicales Elevadores
Lofi Para Un Descanso Profundo Al Dormir Por Las Noches
Melodías Lofi Suaves Para Un Sueño Reparador
Sueño Suave De Lofi: Sonidos Suaves Para Dormir
Estados De Ánimo Felinos: Música Para El Confort De Los Gatos
Ritmos De Relajación: Ritmos Hip Hop Para Desestresarse
Sonido De Yoga Lofi: Equilibrio Musical Suave
Armonía Relajante: Música Relajante Para Dormir
Armonías Para Dormir: Sonidos Tranquilos De Lofi
Sonidos Relajantes: Armonía Musical Para Perros
Hip Hop Para Perros: Vibras Rítmicas Para Perritos
Canción De Cuna Suave Para La Noche Tranquila Del Bebé
Armonía Canina: Tonos Lofi Para La Relajación
Melodías Suaves Para Mascotas: Sonidos Calmantes
Vibras De Sueño: Música De Hip Hop Para Noches Tranquilas
Melodías Pacíficas Para Perros: Música Para La Calma
Melodías Relajantes Que Les Encantan A Los Gatos
Vibras Suaves Para Gatos: Música Calmante Para Felinos
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 0x50ebdbfdc40261d221c0979c89a14989b0268a254b18dadd7bd9d446d35776f0. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZZ8B2448659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56fd71cb0f785abd638885a782d981725820252654aeca6dcc7a9e880dbe8ea. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/QZZ8B2448676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee22b1843034ddeaff91d6c405ca6d77b3892e88e725a81546bd6907985ffccf. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZZ8B2448708.
Momentos De Tranquilidad Para Gatos En Calma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae2c3be3473aebd563844d83c2f73824647a9272331938d962fd0eb3b4ed9f5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZZ8B2448722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5677bc6fe7bb9e55a8329ac1efe38a12c4236c59d1a42273491f1788af29ac2e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZZ8B2448732.