James Lloyd, better known by his stage name Lil' Cease, (; born August 20, 1977) in Brooklyn, a borough of New York City. He is an American rapper and former member of hip hop group Junior M.A.F.I.A.
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 0x41db6c53537ffbc1707408d68197d38bd357a453563d02e13f47bd2de3f394b4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f627623-dea8-4546-a161-6f503fced21b.json and https://artists.proofprofile.net/proofs/artist/8f627623-dea8-4546-a161-6f503fced21b.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 0x2585cddaa8c57f1982ce4a9c33790e52d36054e54d0107c4f73002f5ef9e7ba6. 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/CA5KR2414767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88002c61962b4f5847f5d963b36913bede13f29c84c9bf1d2a6e131196c628b4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USAT29900890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47e5dbb06ba033f91a93b97f3f09fa6ec94db21832a5b6b1e9c5e6a1aed242a. 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/USAT29900891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e55e2d73aa7350536c773a4909c33edd103eb4650e89af9ea82931ce24c275. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-21T17:15:47Z), 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/USAT29900892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b77303f3c3dbd5840156e171b48c0042cf636c73634401f49b7a8fbabb97cf. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USAT29900893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edc5e9cc5c6c81dfc1abc7b60ec51440b47e5dfdc4e583ce107dee611734301. 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/USAT29900911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab52ebbc8a66a3a5f6b9de06b898cd0b0f0460125807d176588ef420849033ec. 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/USAT29900912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2575384b2835b0bb05f37669428011ca811a7a5b01e1e619f4e1d959d2a2c0f4. 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/USAT29900896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d7cc97601e0fc73c90378af09c8933326bcf40be38396028e28cfe9350bdbb. 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/USAT29900897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee14ec3f7ba36ce3ab1231cad72b799657f40f49576ade2750fe85b1f567e587. 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/USAT29900922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a80cb3ab2548443ef34480ca9be65881832f555cbfd2698533942deac3aaaaa. 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/USAT29900914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfe2ec970943b77a331bf26133203a537defa75c9e907bd1efe441e305a2ae2. 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/USAT29900916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2426899ab5495b203d812b877c24e30b17b6c04f06bbb81be1d3907eca97b451. 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/USAT29900902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c1f6478cdd82b4aece09f8f16580a022fbc6e27085e38d2a3be624578a55f1. 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/USAT29900918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddec8ef81f96f446910161daede4f393e7f2146ea85c36c97c5297351e69e470. 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/USUYG1050785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ee8af9d60dc8e0d38487a00c81f56ef7d98bedba9e3d6a1655dd2c5e8d8dea. 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/USAT29900921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b295b07a615d8d93c745d6d376bae82759cade220fcd08e66a57a147703d79c. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USAT29900915.
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 0x3c1916aa34144c5f2ae7d7420948581a23db03d93506b62e5a1b67b0401ba3f5. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USAT29900919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc82ecc9fa7679f8ac50b2fb6e2081cb4993f0f656a43c14916086e8c1ae7822. 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/USBB40580125.