Los Legendarios is a duo of reggaeton music producers, originally from Puerto Rico, made up of Marcos Ramírez (Marc Legendario) and Víctor R. Torres (Rafy Legendario). They made their debut as produce
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 0xf40c18326da67b7e05eec5cce2dd728de86c43f159fcc8e84e146e00a85cdc47. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/252e113c-44e3-4e2e-b28e-85b410aa80ba.json and https://artists.proofprofile.net/proofs/artist/252e113c-44e3-4e2e-b28e-85b410aa80ba.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 0x38e96bc2fdbb2df96ee345d1b4c03234e9452ab68f989fc65a083112b1880cce. 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/USSD12100941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e0a92f522ab5f5ac9d7abb42e088cc2ebd1f9828bc8dc85c7558d11c3febd2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX2119487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e048f21ad12e24bbf3d2142c1057ec2beb73ee3810d80d229f17d880207592. 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/QMBZ92267116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ceec23f88d962e13417574fef805811b01ec488acb867ec2738495553d57e4. 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/QM7282057668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb469712a8b3bb293dcb0a9b1c726c011ae28f51251f44bb603a25dbfde5eaca4. 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/USSD12100664.
Cerramos los Ojos (feat. Los Legendarios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1be3ff07ae4e5e907ef31eb1484cfc6e476b08279308d0928249785f4a2203f. 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/USSD12100663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b798e33720615af257ab1ba6d73ef4acdeb3c06a52967fe8fd313b4f550aa4. 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/USSD12100665.
Emojis de Corazones (feat. Los Legendarios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8277ac27322b94e7e94915258e87873f465d3a0f88b7877a9a0e65590e5cde11. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSD12100636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2a2622988ec32fa96a072fab36cf33443aca71b88f99110c6416a2bf221396. 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/USSD12200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f07406a3109462ffefcb877adf90ebd25908755a894263e89ed2ed9e15facd. 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/USSD12100938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb292cb86a9c541a63b3536b173de90a59b24ad76b87efe651d8d143bb309bb19. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSD12100937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1f0a5fc72ae3702775fa91b666143483f8c8b9f0b23c26dee4023a4c89bf77. 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/USSD12100667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7acadfd3c17f329a555ef7f2c93cabe05f813b85a3c6fd683cc9ba717861c9. 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/USSD12100668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc250929a89a5435654190ba78e2d7290546f777713dff52fcee6e7c0671293e9. 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/USSD12100662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b19009403f04a7d0a16f2203f17cff71dcd67e90a657623a3570ac5315e786. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSD12100940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8277ac27322b94e7e94915258e87873f465d3a0f88b7877a9a0e65590e5cde11. 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/USSD12100636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b277e2ca11ffd4724509a2bf12d089e4072611230c2de59354c6ecb6f7197b. 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/QMFME2163760.
El Hilo (feat. Elkin Robinson, Wisin & Los Legendarios) - La Base Remix
KOGI SESSIONS, Vol. 1 (Cumbiana Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14334b818d817c9a325c54c648e432c1e38f0df9865cb339ac478cad55201fe9. 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/USSD12100123.
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