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 0xbaf523481361dd35f93374b465f1073b8d171eb721091144cddfed2dfb4a878d. 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/06cfa27d-8bef-4921-a293-bb960b51e46e.json and https://artists.proofprofile.net/proofs/artist/06cfa27d-8bef-4921-a293-bb960b51e46e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cante Flamenco (feat. Justo de Badajoz) [Mono Version]
Vintage Flamenco Cante Nº20 - EPs Collectors
Grandes del Cante Flamenco: Porrina de Badajoz
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 0xe21001a9bb19cce804c39da1dd6f6a12bafd4b1ffc2915fe160f97d660122984. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES7580700105.
Grandes Figuras del Cante Flamenco : Porrina de Badajoz
Figuras del Cante Jondo: Porrina de Badajoz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc999ed4d0b4761b7d82acdbc71a075870527010c7b5be8d8af3369aa20e41826. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ES7581300913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5875fe1e75bd2f5752d73d43ea73e3f4a97473200d656c36150c3c80ac4f64. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES7581300886.
Tu Mare Con Ser Tu Mare - Tangos del Gurugú
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf7ed3703fdd9a53ced4cc1596042f2c5f2459b889650a6d59106f18d638d2b. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ES7581300918.
Toitas las Mujeres Llevan - Fandangos de Huelva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a257c69085a28771953489dc6a8f04e441410f670ccd98f8decb7234b8e3e86. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ES7581300894.
50 Años de Flamenco, Vol. 9: 1935-1985 (1ª Epoca)
50 Años de Flamenco, Vol. 9 : 1935-1985 (1a Epoca)
Great Interpreters of Flamenco - Porrina de Badajoz, 1920 - 1950
El Que Quiera a la Malena (feat. Juan Serrano) - Tango
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1e518d70f33d97182ea8cdb53fe50d7c7626e1dbf6986ecdffe008bd18097b. 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/GRHR11159001.
Ha Tirao una Perdiz (Fandango de Huelva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a681f8cf4b5e0525fcf68f9a4032ea3abc53c88cdfe76c0cc3d7dfdc5f3a66a. 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/ES5271103002.
Grands Cantaores du Flamenco Vol. 21: Porrina de Badajoz
Porrina de Badajoz, La Época Dorada del Flamenco
27 de Sus Mejores Cantes. Siempre Grande y Noble
Calor Flamenco - Porrina de Badajoz y Su Flamenco Legendario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512a4c7daa891abaabd0c975eedebcad2fa2a3c5d2c2dfda2fb6b158c0d28f13. 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/ES5087600185.