Juana Reina Castrillo (25 August 1925 in Seville – 19 March 1999 in Seville) better known as Juanita Reina, was a Spanish actress and copla singer. She was born in the Sevillian district, la Macarena
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 0xaff1f065b3e60898375119a9724fed672ff78328690e7bb06562c3344b9c74e4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac55b516-ac3e-4015-b32f-126c9a8a5f67.json and https://artists.proofprofile.net/proofs/artist/ac55b516-ac3e-4015-b32f-126c9a8a5f67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vintage Spanish Song Nº54 - EPs Collectors "Así Canta Juanita Reina"
Vintage Spanish Song Nº65 - EPs Collectors "Lola La Piconera"
Vintage Spanish Song Nº33 - EPs Collectors
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 0xa5b02d60eac1531fa5b8e45951b935f2918fec3a3cb8877697790b8bd30d9b30. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/ES7580501633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe4e38bd780cb72dd100aba0e8eb3118b1bee3b98eedf3bb1501c3aae457e3e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ES7580501635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94c8f1d5a83a123c58b6fac14d2e009dfbdb2a8d70bb87fa656fa3214cbcbd5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ES7580501637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73020d18cedc2df8be91f122f9114ad2540a40b2e0258ed27676f4662b0d35a8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES7580501648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad5e4db1148b74aaa71e833e86fd743dea98a33ebc73fd8729ebbcfb56cac3e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES7580501655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809e30b4f142fb7b4883d1c46df5acac0340ae19c5435f3bb6eed76ac66ab8a8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES7580501659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe4e38bd780cb72dd100aba0e8eb3118b1bee3b98eedf3bb1501c3aae457e3e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ES7580501635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b32fc05ee4597b30b92ebe0ad7071e2ba3955ed2ddd8cfc122128f559a4a40f. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/ES7580501647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a750845273e56ec7711509843ae7337a9e8402882225908e8a3541f793ca72c. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ES5089200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4943555c55fbc90b9c1a1a0118e9dd67dfbc6d7a95019b8b39c7d5400f75e436. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ES5089200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4262bc52a65ec96b163dac76f48879d2006e5e7c4a0af07a08df3edf3d5220a8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES5330103090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94c8f1d5a83a123c58b6fac14d2e009dfbdb2a8d70bb87fa656fa3214cbcbd5. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ES7580501637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644c1b8f1a2d70619cdf719941c133040604e57c6a9a3c05a3393edf0a96960f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ES5089200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285f400919be580ab43887e2205b9d19fe0558341ee2fba0251c08425dc2a3d8. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:17:33Z), 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/ES5089200060.
Francisco Alegre y Otros Primeros Éxitos
Una Cantaora - La Copla De Juanita Reina
Lo Mejor de la Copla, Sus Grandes Exitos
40 Años de No. 1 en Español: Los 50's, los 60's, los 70's y los 80's, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da3b8a6b134ae818683bf70c91ce0a73f910d50c856b70804041f2c63ea2afc. 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/ES5371610016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73020d18cedc2df8be91f122f9114ad2540a40b2e0258ed27676f4662b0d35a8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES7580501648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe874bbff2d6580bdee8ee10ebedd4fcebe8a3f2ef72e61521c8c21a6b786917. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES7580501634.