Brandon Christopher McCartney (born August 17, 1989), known professionally as Lil B and Lil B The BasedGod, is an American rapper and record producer. He began his career as a member of the Berkeley,
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 0x192d8f05d3e27c9e40c9be5f4ab693d857e38fbbf7f2ab7275ef32e5af50c645. 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/8b263a74-995c-4ff2-9fd8-8fbaf995fdab.json and https://artists.proofprofile.net/proofs/artist/8b263a74-995c-4ff2-9fd8-8fbaf995fdab.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 0x08d216754d430dd7069859bcfcee38391b86fa0033ce53cbc7371ffa9e0ba33e. 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/TCADP1842617.
First Night (with Teezo Touchdown, Juicy J, Cochise, Denzel Curry & Lil B)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede922faa49f889fb414428fce94eb17443217f625141849907bae414c98cee3. 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/USUG12303139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb0830d7d65e948554044aa6b3f6131010dc1da8aeb63a784ed0b8f50b2f3b5. 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/USUG12106452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffc94f6ff8d25c781f05ebf21442b202a7e8afe24d4ab5346efe871ce3561f0. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/QZVEM2348052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb67d97dde810053346b696622eac67322c540af7678bfef7f78e198ebea6b4. 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/QZJ842002567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8fd711c323220d37de7f833e8bf5331de1129780d9959fc5e84c4f08e78cf9. 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/CA5KR2231825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4c950352e1d7785f6da12a6c04775043dbf4c5a0fcbc5550157049d1aac609. 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/NLZ7B2100181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c577982aa916769e0dc7d53b764c340bd868927488108dd6f8deac814772269. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USLD91753714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4c950352e1d7785f6da12a6c04775043dbf4c5a0fcbc5550157049d1aac609. 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/NLZ7B2100181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a97f7ad13029d8a9acbad6e0d1d58236b40bb0f940fa82971462023907f616a. 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/USA2P1502844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb67d97dde810053346b696622eac67322c540af7678bfef7f78e198ebea6b4. 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/QZJ842002567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8a4e590a3cfc682a489c083cf0d223d6a9de8184701e62f2805dd3369ab89d. 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/USUYG1378203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db11d47d3fc5629b0e34af350a4ed27f141ecf15f99995b611b894978bb034d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USUYG1300562.
Still Slappin (feat. Lil Uno, Lil B & Mozzy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8522a64bb3d9d865d48afc225e74f07d0a926d3898185b7b9150b26a7aaad07. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USUYG1213945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9a492a2d433e95f04f938ddb3d36e789c7e10d95804f486d45f284431807ca. 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/GBLFP1891094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c68bd994587809bfd93ca8925f2bcb8d28fef7e0b92378f12b00cde643c6b9. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/QZFZ42146663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad736cfd531132674667f2262abb9f42de6f2c1c69adf2c80582d52ea5952e4. 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/TCAEF1906696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60575cebabbbb3b4b52811688a36cc8a103bf065ce00c7a08c8b10927cd52c0c. 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/TCAEF1906702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fca7212ed4577940dcd6fb2b4b5da4172f3fa424c4820b95a848d3998ff850. 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/TCAEF1906707.