thumb| Monument to Paco Toronjo at Huelva. Francisco Antonio Toronjo Arreciado (Alosno, June 13, 1928 – Huelva, 2 de julio 1998), known as Paco Toronjo, was a Spanish flamenco singer.Official Alosno T
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 0x2355b3beb14f5df77d76ae99fa9baea305375ae0a14e99a6f74fab5c5e8bdf02. 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/f230c6cc-6143-49ae-b69c-e9f2d0ad31b0.json and https://artists.proofprofile.net/proofs/artist/f230c6cc-6143-49ae-b69c-e9f2d0ad31b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ayer y Hoy de Paco Toronjo (Remasterizado 2022)
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 0xc3246635ed9a67479dc87e50a47e96a30ed40c298eed2591838df60242f3027d. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ES5160700593.
Las Heridas Del Amor (Remasterizado 2024)
Grandes Cantaores Del Flamenco / Paco Toronjo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f6699cb7421f23c0cc24b87745e0ab4f3b9f0c8ac65c36a35c80e101aec73d. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/ES5709903579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1f9cf4e2b107df3e26f7e9ec4d647a5d4a81bbf6a4e88548729529281e0804. 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/ES5709903580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2268ece7a0117cf629d9d4dbdeb159c7bbae763797dbba122f06ed4bd5d3c3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES5709903976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc072c0506822419eac56103be3064ffc5dd38aed6e4230d68b0710c500b82ed2. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ES5160700611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bb76c8becc0f189c6e0718d97605f957d1e9d79759c0829f79ce932fb7278b. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ES5160801174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9913151a3439343d1ffd4f13a52cddbb9d04d9e5587d3ee1224c7be0532e05. 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/ES5160801175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261be6fe60d0958aa619a588a35d8ab5258a10e8e65520400b067b17b41a273c. 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/ES5160801176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbdd36654ba67860e56a751f737c21012e5e939520c7bc601d71fdac8597235. 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/ES5160700615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc619b4bdcb8a024c4b7573c62136a80e34a506bc1b6f21e7ce2ae5f43dfb8956. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ES5160700616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2347e7e09cca96411473bf37828fc45865d6958cdadd5f1b12b20d3147051b25. 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/US6R21389211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782fbc4fbf8860dfd9acf6d6f1b2f2ee529e3387d01fcdc111914db8420b6683. 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/US6R21389212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763dbdb86714c9410b59322de469ffbd5c08eda2d6c655efb3c0c22f1c1f9b44. 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/US6R21389213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73967aae5c255d873f34d4c85497f52e61d2d45f0c6424393928f43c5610b128. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/US6R21389214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0190fb41d8160a7abc594c622b6ce582b6430da4d97b61483c6d6113cd70ce98. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USV291431161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50155b5e9021552994a6f0a3ef412a16136d188d98b297c80b38b4192eb067b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES5709901055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74d8572d554fb27b4067bae4a8dfae530a5b0dde52290309098d90a6f75d9be. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/ES5161303663.