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 0xf70c5463f22ac60fae82ed7a74ab121a1ea3b18671ad5b8d994eec500ddcc004. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06ab3de0-6d03-4b8c-9da9-1bb6d451c49f.json and https://artists.proofprofile.net/proofs/artist/06ab3de0-6d03-4b8c-9da9-1bb6d451c49f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vintage Flamenco Cante Nº30 - EPs Collectors
El Sevillano - Grabaciones Discos Pizarra - Año 1935-1949
Grandes del Cante Flamenco: El Sevillano
Canasteros de Triana (with Niño Ricardo)
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 0x492c9ba1d9f221713ec88c5099e5c1e4820c7ca05b3f7aa858f49885504a7d12. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES5270102006.
Porque el Lujo Te Gustaba (with Niño Ricardo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d948b8510941892293a05d767755e16a097b95f463c413f9933d6c15fb0a183. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ES5270102005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2e8e70a04b5d8a030210e252ee998f29861fa388f5dd3be833f1bc7e3c02db. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/ES5270601507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a182a45ad7b8b15670f9a69a77b8f06b50787e027760d4041b5e5b3079ec240. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/ES5270601501.
Solo la Guitarra Sabe (Milonga) [with Niño Ricardo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad505a09dd4357838ec39e175af0743d08991c986239b812c43617413f6b7f91. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ES5270601508.
Por Culpa de una Mujer (with Niño Ricardo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a14dde47a37daca54a9fbb54ea5044cbe921bead129cb9496d116382a510db9. 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/ES5279901313.
Soleá de Joaquín el de la Paula (with Niño Ricardo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b251d3ecb978660b67b2595a1707db0a7b5f330e6bfeac11c5d5637192d0e8c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES5270105401.
Cancionero Popular (Bulerías) [with Niño Ricardo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b5f736ac34fc76f95aa4f996a11633d9c2a1f310c3f3ad09b4ac4b10c217d5. 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/ES5270601509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ccfdfb417b68b130a0d3fb7705f0e1032ebac36671a93ec236589decd8f293. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES5270601502.
Tú Destrozaste Mi Vía (Fandangos) [with Niño Ricardo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7964f745485339c1cf3480e7f57aef967b9149e3ba9ef0192723bb031848ce2. 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/ES5270601510.
A Pensar Me Paro (Fandangos) [with Niño Ricardo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa555fb05f60f1140349e942145a076c3cd00862b7358ffecd26afc187679f48. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/ES5270601511.
Qué Desgraciaíto Soy (Alegrías Salineras) [with Niño Ricardo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95dbfb2939c4a39e9ef16ba0cf7e9cf63d6bdff72cf63c76254743b59adf3bc. 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/ES5270601503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afebce74aeeccec36d7574d5f9bb2962dd611991ced44a520a26a71badab8aa. 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/ES5270105402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f2bccf1a8e9f116c6a677e2241615c3eff84ebc13d7a419891335fa84e1f3d. 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/ES5270601504.
En la Historia de Mi Vida (Fandango) [with Niño Ricardo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2156a4edfe021a074da051b9f5c45f3509a7b906950e9031619a15adbf8004. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES5270601505.
Por Qué Te Alejas de Mí (Fandangos) [with Niño Ricardo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b9cf476901fbe33b6e8897243e33cb457a56b487988e2bf28938a3e1c55e68. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES5270101604.
La Abandoné a Su Suerte (Fandangos) [with Niño Ricardo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69eacfa41ec85be4ed6cf75f7cd2439b43ba8c2b27397188be1b5a6e7fb564a5. 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/ES5270601512.
El Colmao Gitano (Aires de Seguidilla) [with Niño Ricardo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36729a43ee226f298c32a67e9c6edd0346686b440ffe8ff10fac974ac819cebb. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/ES5270105403.
De Cuba a Sevilla (Adaptación de Aires Cubanos) [with Niño Ricardo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f8a6c5ddde126a92325fd610080764292916658f18dfb36de24efd943994a8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES5270601513.
Maldito Reloj [La fuente del flamenco (1920-1950)]
Mi Caballo [La fuente del flamenco (1920-1950)]
50 Años de Flamenco, Vol. 5 : 1940-1990 (1a Epoca)
El Sevillano, La Época Dorada del Flamenco