Felix Delgado (born December 18, 1974), better known by his stage name Cuban Link, is a Cuban-American rapper. Emerging from the underground hip-hop scene in The Bronx, he came to prominence upon disc
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 0xaa968b894a8971a16d891f0c22de331f504ffc1f8cb3ddb66a29f4caa075f680. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52aa3d61-760c-4bbb-a0c1-a9f1045c1618.json and https://artists.proofprofile.net/proofs/artist/52aa3d61-760c-4bbb-a0c1-a9f1045c1618.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
In for Life (feat. Big Pun, Triple Seis, Prospect, & Cuban Link)
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 0x62103ee62200a59a89190a785f58353c4aa0b07769fa1992eae34f757d1e5dcd. 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/USAT29901331.
Pass the Glock (feat. Big Pun, Prospect, Fat Joe, Triple Seis, Cuban Link, & Armageaddon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2714abf9dd369a1a545c90888960c35cf4165225c12ba83835f097a527a226ad. 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/USAT29900578.
Triple Threat (feat. Armageaddon, Big Pun, & Cuban Link)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3250517cc16f4cd39e79824f61d2364b4add9ace781a2528d67c05d5ecd10bdb. 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/USAT29901333.
As the World Turns (feat. Cuban Link, Prospect, Triple Seis, & Tony Sunshine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62731a4c747350127d776824836719c014fb24fab7fb497240fb60cfb4f655ab. 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/USAT29901336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0841c0d6d42746468167770892af3265e64e4dd3eb967a38c762171fb65bc16. 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/USAT29901339.
Tell Me What U Want (feat. Fat Joe, Armeageddon, Cuban Link & Tony Sunshine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2121e8f79b7795e750f9a8cdb092943f662ea1ae2226332f761798da6c12c7. 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/USAT29901340.
My Kinda Girls (feat. Tony Sunshine & Cuban Link)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e07a9dd95286bf7f4b6beddc06999bd6c20fdd83120d56586f8f3864ba09e5. 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/USAT29901342.
Bet Ya Man Can't (Triz) [feat. Big Punisher, Cuban Link & Triple Seis]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd384b3178f5c58bad90c27f89def69cf1464a22cd821f2c42623dc3513446f07. 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/USMY19800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed784430f4d50f77621db4f9203813d2d80687c326fe865f01c2dc1bdd7587c. 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/USTB11900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477d539ac6d00049e950dcb907a681def472b84bcaf5d036808ef67d4e35d0f3. 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/USSM10102162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d95cd7b51331663da665ec816dfeda34e764fc1998e3805c82dbad77d2d4d60. 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/US2R20400066.
Glamour Life (feat. Fat Joe, Triple Seis, Armageddon & Cuban Link)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ddacfccc698541c9c5a9c749f2c212777bf3de3d90d4b96a7b755d6de1e99c. 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/USLR59900117.
Off the Books (feat. Big Pun & Cuban Link)
2000s Hip-Hop Classics - Top Hip-Hop Tracks From 1999-2009
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c992a47be87635e9c3941c2d9de40eaa0c984f04a10d11f9f364d48192a728. 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/USLR50100114.
Men of Business (feat. Noreaga, Lord Tariq, Kool G Rap & M.O.P.)
Action Like Charles Bronson: Best of Hardcore Hip Hop Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80342946730470fdb124c130a18f69d4a329ff08e3b5480e4883a9b10a32a29c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USI4R1121211.
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