Arnold Martinez (born March 29, 1985), known professionally as Lil Duke, is an American rapper and singer from Atlanta, Georgia. Duke is a member of Young Thug's "Young Stoner Life Records". He starte
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 0xe54bf75bc5bef4f386d592621d9b0d041c7621c94640e60ec59be6bc1548bda9. 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/276a3b5f-2763-42c2-a43f-4c1db6d737c0.json and https://artists.proofprofile.net/proofs/artist/276a3b5f-2763-42c2-a43f-4c1db6d737c0.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 0xf67ea1db611237c2868fefdc1a316014d20971cd564ad2147cef81925319383a. 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/QMCE31902465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad635fb243831757c0d8b022ed89742be8b679b5e6096c486015a05063afe7d. 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/QMCE32100503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649e8454e7e2d0dc32c4994a8285cebfc660a93071306274414a721327457037. 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/QMCE32100508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c23d0a7d0e3c0f8e7fdfeb75d1d62da072ba15736f67100d1e33a427de3a2b. 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/QMCE31902365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463ad544ac5be4ed6b64bab494a5b38d82d2ca16b5fa5f20274a41270592342b. 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/QMCE31901994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbde36c0698f4ac4eac6834def07781e3b7767a65a353e6b8457356c42e1087. 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/QMCE31902352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3137b8dc47bab69b389cde27c288132322402d0e7e1efa65d244236b6c4b95. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMCE31902355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de7665ece593552323e3df2a8a86c8becc3b437d01675246898b36258ff6885. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMCE31902353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b85f0fbd46e0a89f40f253d06886394690094da161235f07c993dd864baca1e. 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/QMCE31902102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf15afa348ed329e7af5fec8fefaabca7ce668483d9d672d559e3751ab939542. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMCE31901992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cbcfa4a96f71587653f47ec27aadf2e847d076bc63eff11e657806af79595b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QMCE31901993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b48a69efdf9759e65832fa1893724dbc705aa7ae12ce8899c5cf647cac49afa. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QMCE31902357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d7187b2457837978be571d37d55ab554715cef01434c6e68b107b7e32695f8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMCE31902363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d36f53dd18e240268286cd62a9d804a55e45ba90edadc1c6b28e9ac28415bf. 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/CA5KR1574747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5710bf35f2c92cd9c6db07b2634e3bda0ff6b597a31098bb167f52610f0c1526. 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/CA5KR1574748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8274a6a3aa8e208201bfab7b1ff96437736589fba652691d477ae549185ba58d. 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/CA5KR1574750.
Who Want It Freestyle (Feat. Yak Gotti, Wicced)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb283c526b318d5f704bea3af224679c651256166666c34466ab1d87b83164be. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CA5KR1574751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a65e23415f2f8b05316e0ca8a8bc33da7d1a498d07273e0b1786ec3bcf2c8e0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CA5KR1574752.
On My Game (Feat. Hoodrich Pablo Juan, DC White)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518069744bc761dcb73f7deafa3cdc364801fd2579dee96a26f764d75a617c42. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CA5KR1574754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940785908ddb5c99fab2e7d9a4c2fb19e07ef40dcdbcb46dbdafb2a4d6461365. 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/CA5KR1574755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e9abdfcbbfae9fc89b744be836baf972fa892f2ef162d59b6c769670e5d891. 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/CA5KR1574756.
Most Wanted (Feat. Peewee Longway, Offset)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafcdcbe4817723230ac708a88a3aa9b9d36e8bbed2b800818848cf2ee6fa3f4. 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/CA5KR1574757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa322aceddf133488e5c8a07e7e6ea2087992339f68580a30a2c615e8e8a09405. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMCE32000428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b85f0fbd46e0a89f40f253d06886394690094da161235f07c993dd864baca1e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMCE31902102.