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 0x1a7ffefe8d3f0b12a60aeac868437c81c0854fe9277553d8d39b36631d06d696. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f85161ca-640c-4649-b620-33aecad2330c.json and https://artists.proofprofile.net/proofs/artist/f85161ca-640c-4649-b620-33aecad2330c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tonos De Sueño: Música Para Un Sueño Tranquilo
Sueños De Medianoche: Antología De Música Para Dormir
Sonidos Para Un Sueño Profundo Por La Noche
Pulso Del Sueño: Noches De Ritmo Binaural
Noche Binaural: Sonidos De Sueño De Aves - 80 88 Hz
Música Para Un Sueño Reparador: Armonías De Medianoche
Música Para Dormir: Respiración Del Sueño
Sonidos Serenos De Lluvia Binaural Para Dormir
Tranquilos Paisajes Binaurales Del Océano Para Dormir
Ritmos Calmantes De Lluvia: Latidos Binaurales Para Dormir
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 0x0164e5863dfab7a18b0014bc2f3cf11c626539b35d1a1951e4a3eb44f4901a42. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBWUL2472599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc06b336b599eb28e5bf4ec819fcefec5b2267eed94047b85e8762acaae5154. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBWUL2472604.
Nanas Binaurales de Lluvia para Descansar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3699b4a67170e8a9777097a068f522ba36eb1ca32e903a7e303aa22f498eef9e. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/GBWUL2472634.
Dormir Bajo El Trueno: Serenidad Nocturna Binaural
Océano Nocturno: Ritmos De Sueño Binaurales
Noche Del Río: Paisajes Sonoros De Sueño Binaurales
Sueño Oceánico: Melodías Serenas Del Sueño
Sueño Acuático: Serenidad De Las Mareas Dormidas
Sueños Tranquilos: Música Para Un Sueño Profundo
Sueños Profundos Del Océano: Melodía De Ondas Adormecidas