Homero Guerrero Jr. Y Los KDT´s De Linares
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 0xca2d150f7876b28ba7df0fc5e1a6b92b9fb5e20e9c44b644bfc72071f8d9d155. 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/c8a85105-ead8-4f72-9444-2f46bf4c41b0.json and https://artists.proofprofile.net/proofs/artist/c8a85105-ead8-4f72-9444-2f46bf4c41b0.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 0x06abb05eeebd364f227720b6dd4f485d9ab2ea1a1f9cab602d7e68473130aadb. 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/MXUM71003183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284692814b49a69cdf1d4a99e8c33420cbee5c7f95e5dcbb6091a1cd2ca3594f. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/MXUM71003185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d70479bb5a3304e949d415bbc094247c369daf8e0694d96a49d89f264cf13d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/MXUM71003186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43ce2c0d7cc8c2803cb1ca02f4e06288de79184df843b902e8acabacddd602b. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/MXUM71003187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564afea0b1997dba28032ceed46d26b079513057b860b56a68bc267e0b3f9e46. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/MXUM71003188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332eab1bfed5fcffbbc0345d86fbf25345c5ad8c7ed365c19d661a994ac9a36f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/MXUM71003189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8b19f1cb25bce15d7ec27c581a110804bae84c6292773428babffc4e676625. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/MXUM71003190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1614baaa30e8d2fb9c0794a6718e448f397eb89ebbfc85b662ab1e53ba4042dd. 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/MXUM71003191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d628d819c21187aaceabf445a3bdbc2cd1a30496cb23db2a80670bed358c727. 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/MXUM71003192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c66b49e358a2b4e1f4146f99dcc6f7d2bb7450d8fda5f55ade38e69e2cc744. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MXUM70803361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa072e224daae03b3ea0c03931ce13161d991d555ad3d96a6515d5d3002bf3c. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/MXUM70803365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc7c96e05e4b3e8bc8b0947d1f7fa9681bc27e3614a7515f4deb29072e12f18. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/MXUM70803370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b293b3ed1849a5e95619f9504b5d9ad15f99e746d190d7f613c8b55dcba049c. 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/MXUM70904110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf04e8ad3538ea077011bf98fc3cc23fb19362478670c8b1077a93ab64dd9c61. 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/MXUM70803366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1d3479cb9e471180fddb3917fb28a8bd9e6abafc88ce168e59194c51f998e3. 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/MXUM70904113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc89edf67dbe89f432ef6d91dfb7b403d1d0005b503fab55b90971d1fcac849c. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/MXUM70904115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6fceb07b50b09acba22766cccbf5cc70ae165c748a400b345ca241b3342577. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/MXUM71001875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e65d699f8420a638e1c889c31a0ec9f1775178a4860ee26fed7f0f6b4ef446e. 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/MXUM71002115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60f5a5ee02689ab2e9d1c1f1e8d071cdf2ef181dfc710ddef47f41ebf5d9de7. 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/MXUM71002872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc89edf67dbe89f432ef6d91dfb7b403d1d0005b503fab55b90971d1fcac849c. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/MXUM70904115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a3f52302554a3fc73d6b0a8f358b8441ebd217f4b7422581a3b03610c3ca3c. 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/MXUM70900526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf88d6a04679b09f41b4001ee87281685353ac2ccead0d9cf3c27b501de819f2. 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/MXUM70803371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f064adc8c22f195055a449ae9e432cf058b3d3f91ea5b850d87c707b2971c6. 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/MXUM70901614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f4f00f3285e1479a27a9995af64551222e84c9c429df3c2309cf53b3e642bc. 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/USA561127439.
21 Black Jack (Nueva Edición Remasterizada)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd01f2aaa246420d72b0b711107ee5abb4bc983373be9fc81c81810e709ff71. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/MXUM70904694.
Canto al Cadete Mayor: Homero Guerrero de la Cerda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033788a0563abaeff5adb74b003470501ba9bf14c379f6fe32f5230916bb9ef9. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZHZ32000129.
Ayer, Hoy Y Siempre Con… Homero Guerrero Jr. Y Los KDT´s De Linares
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bf8b6ed4eb942bc0fc612fa87088ab2ed20aefe1a5089e0e881e4e1674d483. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US9CY2201167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c66b49e358a2b4e1f4146f99dcc6f7d2bb7450d8fda5f55ade38e69e2cc744. 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/MXUM70803361.