Rafael Martínez Arteaga "El Cazador Novato"
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 0x0deaa734435c837bfd3a9736d5c41069641a308e01720d9c8901a684c255da99. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/656e5707-cd39-4322-b31f-c54a8c85fdfe.json and https://artists.proofprofile.net/proofs/artist/656e5707-cd39-4322-b31f-c54a8c85fdfe.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 0xc5ba95d9dc0fe2e65d6c514ee878ddbe8b5a6f7a70a31d019eb3d20c89d7d165. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZNJV2454480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d664a3cfe39d4bffb09cf3c5dfac4eb6e54bbf80ecc204868dee3c8bf560d2. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/QZNJV2454487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d7d0675896d2ee096a5727b501623c67d80f0f403e0b21dfa3765c0c22f3ee. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZMZ92499507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ea4e16ea9071125e4b80f596267c5aecc1b17c716163507ec954e36210fb1e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZMZ92499508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01557b1c01d65745a6f1ee3e9c2f65b5dc5b497cbc18bdaab4e7b70a16079f2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZMZ92499509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7c7a4cd7858f8bb5590785b2f71bdfe1b20df917182cfd4d659183d280a36f. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZMZ92499513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7c1187f2259e5d4a1f68a1e9b317f4b4daeb8738bce9771510d1db7411f3d7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZMZ92480188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1603ccfc1684e334eefe8e01f3147fc935113c5fb18f38d9f35435102267a9a. 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/QZMZ92480189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc837dafb3f634447c9f91e4b50a2aa5ebba3eb35980ca76b691ccb896b849698. 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/QZMZ92480190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8d0ccf2b3bc4e78047f7f034f5b7abd2d83c381a76a482ddbdd671ee46097d. 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/QZMZ92480193.
Llanura Yo Soy Tu Hijo Con el Conjunto de Joseito Romero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e65afdbff121d4fc6d616c15eb20c8e6de065b57318419c6df9ed005c75f0a3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNJW2156147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac31a16ef11f67a08884f00eb96b9274b6135dffc73c6c3e53a937876527618. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZNJW2156148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0b2b78b0d8081f19d8ceb890c0a7dc00841ec67ef2d6ca5aaef4aa151a42bd. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZNJW2156149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d25f8292db96343269837753ed8f8c4be8363bd560436d2ba567550e178a69. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZNJW2156150.
Dos Patrias: Contrapunteo Cristobal Jiménez y el Cazador Novato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510e7f96202749f31d0b06e684307430ed7e9a65e3d24fbdbce2fbddb79e1213. 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/QZNJW2156152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5171d78789a8775a84457fc8f17b5c652dcb74b6d3dae0dfe674af2cf60c30. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZNJW2156153.
El Sapo Cachón "Contrapunteos y Algo Más"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fdb8d53e58c7637796e82fd2f884b4146aa39644d91e7ca6c0aa9af13964ac. 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/QZNJW2156196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed96e35dad06f1197b9df0c16432d145a5389beb27b452657b35518e69631a1f. 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/QZNJW2156197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969ef39bdfe822bbefcde95b6f616dc72ef94eb37cde53161664ef5973fb50a4. 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/QZNJW2156198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543baa90e0171e0ce55c9673aba781e65d133635fc268576d4bee9c5c55bf3af. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZNJW2156199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7489e2b0d7baf2a2a4109920f9da920aa082ff03e394a6c211e0cd48bb30c49. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/QZNJW2156200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1257c061daeec371d4ad88a9897f4a8f1c35bb581e66ac32fbae4f764b95a4a4. 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/QZNJW2156202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9102427c9182bca4ac014c7c9f4291a833e82107d34a7d3a8ea0e486aa6b38. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZNJW2156204.
La Leyenda del Cazador Novato y el Diablo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8d72fe00ca967e6e762f734cb3eac302546e9718180114136d4d17f1e2d277. 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/QZNJW2470507.