David Reynoso Flores (29 January 1926 – 9 June 1994) was a Mexican actor. He appeared in more than 170 films and television shows between 1955 and 1994. He was also a federal deputy from 1979 to 1982,
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 0x97c6c18f9990704ae1234014253f6de1a153b5bdb231dbc149669e5eaeea609a. 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/4ebda1d5-80f1-4319-bc9d-b0abca12d5af.json and https://artists.proofprofile.net/proofs/artist/4ebda1d5-80f1-4319-bc9d-b0abca12d5af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x03fc99315aeb8ce7f390b0d4e0dd4d1309719148d3cb2d04795067f3c776ae81. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:19:05Z), 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/MXF146700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d6395a596a9ade5586956169af5d8d3de26b308d0b343d8df5f5723edd3d04. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/MXF146700129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aeb7fdedfd7ba705dc8127c432e82c5a461623ea898239c6b36fca98fe3a8da. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/MXF146600069.
La Gran Coleccion Del 60 Aniversario CBS - David Reynoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762dea47b395ea44d0ab2adc3e9244828698c4638e34efe36f10e955501da356. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/MXF146700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a60e3e821b75efd6b04e77b83942e7973614243ff75aaac3ff8353aa8a09407. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/MXF146600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bcb9d5c46f2b3ebf9fdb1a85a925b324ff7ad433d1d107aa399e9d9d226fca9. 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/MXF146700133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d6395a596a9ade5586956169af5d8d3de26b308d0b343d8df5f5723edd3d04. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/MXF146700129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf26e2a3be5b42fb7bd8109d76d6c77644cfd8baa2b0f951042d56d4d40369e. 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/MXF146700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328acde6fe9a1272658479a7c3bbd15e2c6d47fea1c9d0760cfcff110b42566e. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/MXF147400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3356c61a89a9239b0737e3cb0dc172b37d928f0ab6fa16be47922ec3583b60c. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:00:13Z), 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/MXF146900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9880962abbf427a8df3a8b33228524459c7f7e1ed7dbb9d5f0e36feea682cca. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/MXF146900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8236c25a00c0fbc7b7eed02257b98e6222ba6fd7d939fc83606129051a067b. 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/MXF148000042.
David Reynoso y la Música de Agustín Lara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c50a4c22691fa9f8cec3fc0c066b01bec36424e17cacf5cfae02468b05bc611. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/MXF147000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22c6bdfcb186aa96de60d4d9f58241105b96ada6b30f903ccd41f646f70949a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:57:48Z), 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/MXF017000299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f5050cb33ce0f6ee8a1ef8f4d071ebf8bc5ebd591b6ff5bff23b26791f0611. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/MXF147000134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21a07abdbd91076c23155a13f58d6377c206b20be4f73bd76f670e4292e8e64. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:39:16Z), 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/MXF147500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c70e376f9c0bbc440097e39b739a7a1fa588e8d774e5e277178aa108566c9d1. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/MXF147400047.
Las Grandes Canciones Rancheras que Debes Escuchar antes del Fin del Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf26e2a3be5b42fb7bd8109d76d6c77644cfd8baa2b0f951042d56d4d40369e. 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/MXF146700033.