José Ángel Torres Castro (born March 19, 1982), better known as Gocho, is a Puerto Rican songwriter, singer and record producer, nicknamed "El Lápiz de Platino" (in English, The Platinum Pen). In 2003
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 0x2569953ef9278094839362728d478033206840fbcc61c4f97de9a459301a30f1. 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/e997943e-e0ab-41a5-91b5-fdadb00272e4.json and https://artists.proofprofile.net/proofs/artist/e997943e-e0ab-41a5-91b5-fdadb00272e4.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 0x46dcbd26351806c7b4784e29f70ca5a14804128cc1c320725751be88c31533f9. 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/QM7282057381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c67df544e40aed4b5cfe7a6d4f9cab062e04f1785179ef8c72b5c256da3d6bf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM7282057382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92bf148b0dec915662991e0768f2e4918963fbdca600a8056bd07c5699d08ca6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM7282057390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01425fa6376e62ff491f761389a939809d047e782a04484147848e5dc9c6cf1a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM7282057392.
Mente Dana (feat. Luigi 21 Plus & Boy Wonder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79fd7b3d1dd369ade9ccd5c2e06f8ee619ecf6b16b76605639969d1b9cf5f4a. 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/BK4DA2302606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf444be8c1992fdb86f499e8371644ee5576b67ef5180cca725d56d7f5149ea06. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BK4DA2307406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0996383a3dc21fbb8c6599d4e5222d0de81a081ba5e0049cfe9f1fe07072134. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BK4DA2313268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc61f4bfd1e1d5e678a18f79a63970f090744d086ad353d59339788d32e95e18. 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/BK4DA2439851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2bc87c5be6fe14f3cb804232b381616bfc6d6b78a12c01b28f4e3baf622e84. 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/BK4DA2503157.
Sueños de Barrio (feat. Baby Rasta, Noriel, Nengo Flow, Tempo, Gocho, Alexio, Jenai & Pusho)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3875c79b2c72f6c64d371a630dd413b9d24f96397d788c85cc0e43e0c8dc835. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USCGJ1665377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4482befc9aa7e9ef7ff637d3e7085b47e4fb03246ba493e7295be852f40346a5. 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/QM4TW2026673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41649e98d01947226bad3c4096c55f85bc2ed64ad27b4c71c0716bbbc24e29e7. 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/USSD11500112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f7f0f9005bf6b6070c61e363b3d0d4a64e08ba6ea080fe935aa4a1612a8438. 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/QM6N21906549.
El Regreso del Sobreviviente (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2c9309df10d5ac63f1f5364c65496107b32f8a8c1144d6044d20fdb2826013. 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/USSD11300403.
Latin Hits Club Edition 2013 (Kuduro, Salsa, Bachata, Merengue, Reggaeton, Fitness, Mambo, Timba, Cubaton, Dembow, Cumbia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbedf88840fe69a1400db261115d6d50bcd78973aae62e91c17e9c71fe999483. 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/ITF251100005.