James Todd Smith (born January 14, 1968), known professionally as LL Cool J (short for Ladies Love Cool James), is an American rapper and actor. He is one of the earliest rappers to achieve commercial
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 0xf22781029a4a42ae0863543d171be57ccb845d5a00a7d944536260b23f520d2a. 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/04d72dd6-5748-410b-a7e1-ef939f3511bb.json and https://artists.proofprofile.net/proofs/artist/04d72dd6-5748-410b-a7e1-ef939f3511bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Flava in Ya Ear (feat. The Notorious B.I.G., LL Cool J, Busta Rhymes & Rampage) - 2016 Remaster
Bad Boy 20th Anniversary Box Set Edition
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 0x7c96f6dd92ea06d4b734ea7281d572330ce4422c77dc7b22fd256e78c0aba760. 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/USRH11603408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9e059c50516850805b945e99fa6879e1ce58d11c5f98f527f34fac3a1a8c37. 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/USDJ20400739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d92d76e3c4fd793ddc9c0cc91f1c794fdee4fcdc69ce83be877e14cf2c7dc3. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/USDJ29500149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d92d76e3c4fd793ddc9c0cc91f1c794fdee4fcdc69ce83be877e14cf2c7dc3. 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/USDJ29500149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e343710c2fef7302effb80c8da50d0cf3c0c51211ca18bdf3b9c932c20ac59. 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/FR8GV1914660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc51f4e9f5b9a8612ddcd6e9b25d8b4e4a5f6624eddcca9af54d8a4a95e62d7d. 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/US38L1300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5532576e7ac1479c26fe01641bab54331676841a168dcd808500ece03b5a7f. 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/US38L1300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8414fce2477ccaff82bf49d39c4e4d044d479eb37b74cebbbda80de7ea0817. 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/USDJ29905113.
This Is Me...Then (20th Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831abafefcde109d20becf5d417839ddcb42b3cee76c6598b12f95e3e1cc6a9a. 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/USSM10213166.
All I Have (feat. LL Cool J) - Ignorants Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0882b0d49fd151a8b7971d7f23805748e735a873529c37bb44a29cbf1aa16d1. 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/USSM10306894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831abafefcde109d20becf5d417839ddcb42b3cee76c6598b12f95e3e1cc6a9a. 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/USSM10213166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9fc3fa440a0b214dd524244f53c8d7dcba52c031e42a2049b4839d0b7763f6. 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/USUM70831581.
Saturday Night Special (feat. Rick Ross & Fat Joe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96f6f99ae977b816cdd5c91a6da782161ba45dd9a49487249d97602d0702fa2. 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/USA2P2423889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0988c151d8db7628fb8842a3857410dbe69e3f4dbea432d2e7fdcd8382c53ea. Chain 2 (Bitcoin): anchored in block 959147 (2026-07-22T15:43:44Z), 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/USDJ20400741.
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 0xdc32fd28f328b8c8f2bc79875fb1762ec0bdb1f2212258e1c9d10b84b0b37133. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USDJ29000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15d2612d96589c2eb4e00ec74e410667804c1ce6e4cf4d1c30bb352a6a81e91. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/US38L1300135.