José Gabriel Severino (born 1 April 1974), better known by his stage name El Jeffrey, is a merengue artist from the Dominican Republic. A major album of his is "Mi Vida". El Jeffrey first became a hou
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 0x6344c8faab0f64540570d45d3efa97990ee080a96a2fa49017de49de9bcc3805. 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/1a10c1c6-1431-4e93-bb62-acf8b13899a5.json and https://artists.proofprofile.net/proofs/artist/1a10c1c6-1431-4e93-bb62-acf8b13899a5.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 0x7f1e29bb9e14c11a7930c3246187fa99d00a2e81da32638ccbbc0172d2ee0ba8. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QM4TW1665349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdad7c169c1da43d495023a0939899713e1f14ba1fa9816429d7db9603588d0. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:46:27Z), 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/QMBZ91663049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80160156f20250b88e104aaf588f2e548d824db878ae9868b4fb9fdaaf98d557. 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/QM4TW1646068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc5bd6e5e7706032ed04a9956aa14274fbba616e21de16775e1abd771aa9f62. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM4TW1646072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309acac1bb3a61f5c96fafa447e63fa5df10bcf842d7dc426bc04e201a3570ca. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QMBZ91667761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698218784cd634759597019a97258e1301f5a73bc4b57a3a7f09858a9cbba7cd. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T13:24:39Z), 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/QMBZ91667765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef099a8ba3d1e950cbadd43490736cde0c066d1bb665b3cf7de8c499f06349ba. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QM4TW1653083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c999a9dd0a21d6467a21a3aaecc49aaa73060f2ac755e3666870c16253a6d4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMBZ91672165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9792150da5a344a44fccab09736fb76146a56ac9a834ef15ec488856626114b. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZHN32199692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa741977addbaec9c6112c36f154e76793577e843d9f8bde53294fbd3f0b384. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZK6M2185563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2281a5675488337361f901bb5203ce23bb9b7cffd4428b7e13a5e9d174eb05a. 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/GBRKQ2595138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21171768b66567ef6bf337af2f7d686b80549b501632d2956848203435dcf8ab. 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/QM6P42589212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8b55e95946a176310e7c46bd9cf791313419656bfda3268bb01f220be46c4c. 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/USSD12200392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffd02d5404fe507a97004fae5227e4dd13ef16ca5169c73d6f8e1f643341f42. 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/USA2P2159697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffd02d5404fe507a97004fae5227e4dd13ef16ca5169c73d6f8e1f643341f42. 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/USA2P2159697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b9ef125b507effa805c3e7ea923d830a351e04f6bc76bb7044d854f6811372. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:03:51Z), 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/US3Z42500070.