José Guardiola Díaz de Rada, (22 October 1930 – 9 April 2012) was a Spanish singer of popular music who sang in Spanish and Catalan. He in the Eurovision Song Contest 1963. Guardiola was born in Bar
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 0x4eef2c1274a4e18d3908f064d96303629c519797162f27f5a13d615c0c0b4919. 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/10bbabf4-ffad-433d-a528-a8484efb0112.json and https://artists.proofprofile.net/proofs/artist/10bbabf4-ffad-433d-a528-a8484efb0112.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vintage Vocal Jazz / Swing Nº 65 - EPs Collectors, "Goodnight Milady"
Vintage Vocal Jazz / Swing Nº 64 - EPs Collectors, "Come Prima"
Vintage Vocal Jazz / Swing Nº 66 - EPs Collectors, "Mackie El Navaja"
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 0xda619189d9ac55af11868915239fa51f77f449266229f789cf9f621b3c48cf4b. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/ES5029900355.
Himne del R.C.D. Espanyol / Himno del R.C.D. Español (Versión Clásica)
José Guardiola. Historia del Pop Español
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b9c2db2a6ea6c44721d30d8556b8835e71115e37c52e0281bbe59e64f78b03. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ES5081200134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9a5482d2a919e5a2f91d0ce1b77c5e9094d5d41c1228af9326e34060859fa4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES7580501664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa319ad685eae46ace43d70dffe308b47cd9513e7f1508ce89f0a301909f9f2e3. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/ES5299000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082e4ca6ec69c51edacdb4f206bd9c6afd1f724c3f330f25a53786beadead4a9. 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/ES5086200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106a9d46f3b17d256f673e7dcf21927cab819c5b2f747268cc5e00e8edef623a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES5086000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb60d17c2bb94ffe958dfe0bd4ca543f09ca85c43bfcca0ef5ad156eb189129. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ES5085900016.
José Guardiola - Éxitos Inolvidables, Vol. 2
José Guardiola - Éxitos Inolvidables, Vol. 1
Sus grabaciones en Regal y La Voz de su Amo, Vol. 2 (1957-1963)
Sus grabaciones en Regal y La Voz de su Amo, Vol. 3 (1957-1963)
Sus grabaciones en Regal y La Voz de su Amo, Vol. 1 (1957-1963)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cb6a8fdd7c5de84f2826b51ff379dc17501da1ab2b0a784cfd9669b668cf44. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES5299200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1544a711fa28b07103c34867dcfb76f9e10e2658d35f936d1fbf57dceda548e4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES7580501670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21edaf89ac60f61a00a158dcdd476950ea1cba8ab66a239104f48bd8c76b0a1b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES7580501668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480429f87c9a4b651e2ee6e208c44eaba5adcebfc6942c26912baebde0396044. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES7580501666.
40 Años de No. 1 en Español : Los 50's, 60's, 70's y 80's
Que Tiempo Tan Feliz (Those Were The Day)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3540c252b77900cdc2e1f384e920523b510c0d40063548f853d2434e8c2981. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES5026800233.