Ignacio López Tarso (born Ignacio López López; 15 January 1925 – 11 March 2023) was a Mexican actor of stage, film and television. He acted in about 50 films and appeared in documentaries and in one s
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 0x40378247ce469e9fbcb7f8a280e19f3b95abb493695254c32e8d7ba19dd1a627. 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/7211c863-d683-4d49-8cb4-cd2f075d0f0d.json and https://artists.proofprofile.net/proofs/artist/7211c863-d683-4d49-8cb4-cd2f075d0f0d.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 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 0x38170f1cb51608dd8c69484d825dc86964869d1201aeced73005ec93686132fa. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/MXF147100536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee9423c875b65dc039ccd3ac5e1578a93384e44db897bf136419e62dd3fdcff. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/MXF147100093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239700520922b10bda413ac74a6777733f8719e1a6230a0915d39b7205fbf132. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/MXF147100091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4d8d0084dc0295573787db6dc2d58e92d2e1264a30715dfbd55ed4558e2222. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/MXF147100538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018ec23b60f11e3161e29e6520492a676685dc4f135c0beefa64263162c929c4. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/MXF146300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa629c21ace9f0fcfe5d757d52ea83b866faa9e9cdff9dcfcb213b3185c70baf6. 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/MXF147100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b6776b80b50059112d62668287bb0a20becca7957db26479b4e7991e120a68. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/MXF147100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76fd6aecd255a89b828300ee60fa75b766885cc0d742e62d485852786ee889b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MXF147100535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec566c11b4c53fede1f5b8fadd4bc4d4052d80d8233dee71d50ca674700ea75d. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/MXF146300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f0648e53ed2fb682f4d6505cc478cc655a3b1f6c0975486a09a6425ab00ac2. 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/MXF146600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3360cd144a07d45228ce29f0e0c2b45e84f39a36f6e0aac00f3a063b0b1bdb7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/MXF146600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64f9f87a08bb0ef953e61c2c8bf40fa2cffc79930ffe29a5526ceee94dfee52. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/MXF147300751.
Tesoros De Coleccion - Ignacio Lopez Tarso
La Gran Colección del 60 Aniversario CBS - Ignacio López Tarso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f0648e53ed2fb682f4d6505cc478cc655a3b1f6c0975486a09a6425ab00ac2. 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/MXF146600041.
Emboscada a la Constitución (Muerte de Carranza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a48c462a90195fd2bd52b96f168b3c1a96fbf60b97963a988c0af9d3b6b60f. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/MXF147000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79ead501dacfed84f421dd653a3e61088dd8dde8b91e9532db0b0b249d46238. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/MXF147500146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c177d8f2e79accb711e6a2ebf7c137e3a025813586c4c4109cca9da9122b10. 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/MXF147500145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae75439bc29aed8f71995fbec935d18131adb138bce88b9b2a5e18d3df28ae73. 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/MXF146600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d8918e0f8acf3177842267484845aa513561107539900e9be6995bc30012dc. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/MXF146600040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f62fc72965040608e46aeba95b13943c5e1a539f4a5596f78446d30abc4a07. 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/MXF146600039.
Mexicanisimo-Bicentenario/Ignacio López Tarso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddacb874654602cea6ef61ecb2b6e1264eb78f95c3e5629911f7bb9c31ea43ec. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/MXF147500150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2272fdad309b9b1b4eb5978455a587fe13b16d95e42a4f4bb517feed4dab35. 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/MXF147500149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb700fbe7f687b1a2f7acc2ffa950ce2fa818efa8f0066c4b0840bb6a2bb78a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/MXF147500148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64722fb6e26eeb9d9a05476cc7f8211c8c457404734606c470c2bfb57a020037. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/MXF147500147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79ead501dacfed84f421dd653a3e61088dd8dde8b91e9532db0b0b249d46238. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/MXF147500146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b7c98839b7f180562bd8166d6179d4df906cbf8f7ab2d880d1487e8f29d831. 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/MXF016300404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90eb0df66ab7cd9b001175a2a7b56b1dc6cfb1daf7ecf943b8789a1878c428eb. 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/MXF016300405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abe7c971794a651cc05693ae046acc33f1b03e60335f86bcc7eca693a89105c. 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/MXF016300410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2e4a03cd6c51557b256c745678db6f71adc77944d2e673ca14783439fe0661. 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/MXF147100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0f601d72a6785768401dc6d7aca95f7812ff4440b733c19af63fe127d4293a. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/MXF147600146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fb5f88f686d18b8562d9cd6011d920fce8c1fc620a7f7101842eeb83c790b8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/MXF147500134.
Relatos Y Corridos De La Revolución Mexicana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce5027b6ac0597a79fc1490ef6d0d9a94890c9572ed34a297e43db046526e97. 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/MXF016900314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffe28937a8683f812a81cabd7f8dba5bc4029ada739edd8a5c97aaf6ab30655. 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/MXF018200768.
14 Auténticos Exitos Corridos Con 2 Grandes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4729454476fb1a8827aa6f66d041d52dcb55121de0fa0e78da8cf06379d366. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/MXD941804553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67dfd0eeae98cda13a7d813ab9c629421174854a3cc5a8efb845f5fcd01b9f1. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/DEA622101324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd641497b6393813bb8dd6190a19b238588973a6b4ea91501f2b8c710942746bc. 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/DEA622101383.
Tesoros De Coleccion - -Victor Cordero A Traves De Sus Mas Bellas Canciones Y Sus Mejores Interpretes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfca33a117962617bee53f8aac532dea651f283edc78e45a192e5fa847ffd3fe. 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/MXF018200608.