Ricardo Modrego (19 October 1934 – 17 January 2017) was a Spanish flamenco guitarist from Madrid. He was the brother of Spanish-Flamenco dancer Nana Lorca. They both started their careers in Madrid in
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 0x28a07f37fd169f3619e700cf8bf0b16da3943020209d4e188a5010854bb80f24. 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/de7c1a5f-8300-4e7e-a772-5d842ed8c496.json and https://artists.proofprofile.net/proofs/artist/de7c1a5f-8300-4e7e-a772-5d842ed8c496.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
12 Canciones De Garcia Lorca Para Guitarra
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 0xcccdd2e06e9df883e615d0b531d9d134880424e8a0207eba4050369b7f2719e4. 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/ES5709901171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405f7b407a76b2a1f665ccfdc81d453034e9d434aa57a789c544407e2806c541. 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/ES5709901172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1896bb938ea8579cfa60f0f12fb308d801ed14d9c2c2025fb7f26bbe072d2e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES5709901173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4eefd0cf2acb2ce2172c4614a82309b03862c73d6820100ceba435359d2edc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES5709901174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e86fb4fde8bb37338cbf5d72c296f3dba149dcd3fb2f9cb18165d091d9e0ee. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES5709901176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1af7d3e27b9eb6f2089253b0d53f64ddde637f77fae5652bb3d4184243e69b. 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/ES5709901177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc77a0768bcf52e92526853604cb850e886f262f82f555024c63dc4fe76b7d9f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES5709901178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1089f91b0d62554b9d1003b8e0ff0c2e14761294c53bf809297357452d431e. 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/ES5709901179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd676a5221928da4bbba128eb467e128d7367e110c323cdf8c95ee0aa246ec9f6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES5709901180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141a47de4a089cf0cc20ce8d03322031c6b50b7e2b8212bee8b7f7508f7e392b. 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/ES5709901182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d61a03b765c3d5d958ffa0bd815651f854c4828cd0ea8557ef1a1279399282. 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/ES5009600161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccdd2e06e9df883e615d0b531d9d134880424e8a0207eba4050369b7f2719e4. 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/ES5709901171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405f7b407a76b2a1f665ccfdc81d453034e9d434aa57a789c544407e2806c541. 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/ES5709901172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1896bb938ea8579cfa60f0f12fb308d801ed14d9c2c2025fb7f26bbe072d2e. 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/ES5709901173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4eefd0cf2acb2ce2172c4614a82309b03862c73d6820100ceba435359d2edc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES5709901174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e86fb4fde8bb37338cbf5d72c296f3dba149dcd3fb2f9cb18165d091d9e0ee. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ES5709901176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1af7d3e27b9eb6f2089253b0d53f64ddde637f77fae5652bb3d4184243e69b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ES5709901177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc77a0768bcf52e92526853604cb850e886f262f82f555024c63dc4fe76b7d9f. 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/ES5709901178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1089f91b0d62554b9d1003b8e0ff0c2e14761294c53bf809297357452d431e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ES5709901179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd676a5221928da4bbba128eb467e128d7367e110c323cdf8c95ee0aa246ec9f6. 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/ES5709901180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141a47de4a089cf0cc20ce8d03322031c6b50b7e2b8212bee8b7f7508f7e392b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES5709901182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44c8b5ccf050a2ff2e81f3e8860e8d0d4be84ec0c212a459e5015696df01590. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES5009600145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa90733e974cb67d9fe29c9277e75c409d8f09cd773ebfae7bddde5eb5d9ac70. 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/ES5009600146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7079238ce5a9fee9d28970d36e875eab68634116ac809d1790fc3299ebe5414c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:55:32Z), 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/ES5009600147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddd26f14bbec2b978feb089c8db965650e01e36b4ecba3a022592e1db96a9d9. 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/ES5009600148.