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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723af7cf34844c81395ae73ed9a9664483e55ea264898c4a6e95574dcea94efb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ceb56a25-c31e-4528-be01-95532c80c17a.json and https://artists.proofprofile.net/proofs/artist/ceb56a25-c31e-4528-be01-95532c80c17a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fusión De Guitarra: Mezclas De Tradición Y Modernidad
Cuerdas Juguetonas: Música De Guitarra Para Gatos
Acordes Suaves: Música De Guitarra Relajante
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ba7e0474a255b34187d0716fd47c48b80aee7f938dd19c291f9ac72d341a72. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLZJ2553876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4e8dab75f02b7784c058e3d02f0d1034ee07e85febd37674f53b457aaf5e28. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USLZJ2553884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c56f1c2ad27f5404bad5d1e87e5a3e16a1a593d3da7f7d83fcc8400956d196. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USLZJ2553869.
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
Cuerdas En Movimiento: Música De Guitarra Para El Alma
Cuerdas De Armonía: Experiencia De Música De Guitarra
Acordes Suaves: Música De Guitarra Para Mascotas
Flujo Melódico: La Esencia De La Música De Guitarra
Horizonte Melódico: Música De Guitarra Relajante
Música De Guitarra: Melodías Para Cada Momento
Noches De Guitarra: Melodías Para El Sueño
Música De Guitarra: Melodías Tranquilas Para Meditar
Mentes Enfocadas: Sonidos De Música De Guitarra
Melodías Calmantes: Música De Guitarra Para Perros
Melodías Para Meditar: Tranquilas Canciones De Guitarra
Las Canciones de Guitarra Acústica favoritas de Papa Noel
Spanish Guitar Instrumentals for Romance