Kristopher Kevon Williams, known professionally as RXKNephew (formerly DrugRixh Nephew and Rx Nephew), is an American rapper, songwriter and record producer from Rochester, New York. He is known for h
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 0x6acd345147caaba2d9b143119be3d9715e33ba4081881c77bfc9c804082ef8d5. 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/d8922891-830e-4081-9a98-a2f3c6361a7b.json and https://artists.proofprofile.net/proofs/artist/d8922891-830e-4081-9a98-a2f3c6361a7b.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 0x2e79cb1c34d8a3e5cb13baea207d6f44e5c8615618f5490cf63ac10153011d23. 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/QMFMF2333822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab92fa13199aa490570cd827d929577172ba4a5f2219770a0ca1cc49ce232be. 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/QZTAZ2435061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d43493035fde7e7d84d3bfdf90b9fb27169ddbe80549028cd8e627d93b8e977. 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/QZTAZ2435062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f9230539a1c3e03e3ebae6536b3d6dcc69ae45464fe0dd7b42405bb0322fd0. 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/QZTAZ2435063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e942c67799fc56b1ba96080a2a6164b549abd3f85991f40739918f9fc8d220. 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/QZTAZ2435064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49372618febf96bfe08c36ce5da2e4dd723cd4aaf15e7cb853cc9e306559104e. 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/QZTAZ2435065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003b819cf74f9fd40247ca28d40766c0c08ee761b7e332d16cb687c22f3ea539. 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/QZTAZ2435070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961dc8940aeb6b525f3f611b7a823d77fbdb07206b5df02df424af9ec2fdf4fa. 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/QZTAU2472822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce766a1c3eabc100c0a7470cabbef7c9708e1e5f908d247405c07381caf3f21. 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/QZTLA2483541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27255304084e56d88bf160c20cc4d095fb59a83a380681bee0b66db9722ba796. 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/QZK6F2350321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6424820d663ac530d065fd5a6eee891b8e9f2a13be720ef42369432d80651115. 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/QZK6F2350327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e81923d7030ee628de6551a3c4f9392995832ba34c2c26186a959f24374c1fc. 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/QZK6F2350330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263a7eef3819275362fdfbbede94ad17d4e3b18561ea61ecb7431af4646bc190. 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/QZK6F2350335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9bc95e43c4e04be81704b7d236b75d3f3c643dc7baa12b8bf53a59a3d41666. 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/QZK6K2387308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d01caae0b1488bb3a2dda71454e72279eccd3d0c10027a838e666d8ed19c2f. 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/USUYG1469261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab4b3609b1fd22f97f42e0c17914e6c91f834693957136c045d63a5e5980ba2. 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/USUYG1469240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6842df0ae2e76facbae430dc493d8a00a9ddc422cd521382515df4b9be142b1. 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/USUYG1469252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfa40bcbd896076efacb50199882c80fa46536abbd656c5cecb28795456e580. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USUYG1445731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0858f1d7edefd3a6ab56ab3a6195095f05b98a9b64deda89bc34b32c1d4e1e2f. 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/QZK6K2257290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28dc57bfe0473854adaa16c94e5aca32f93856530cfa35db758eb429c881dcdf. 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/QZDA52289026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4ba681e0ac73e1e3a1aad9e98f612a9262bc7f4de13b34eb44fc20b386f076. 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/QZRP52190643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1678940e66283ae3612fb7188bff4e74c885411eebea229cc656c817ef74ff46. 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/QZNWV2126438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fd857e23253d731f2d4c33fdbaf9db8f02eecc39a0d38ea8061091efa96246. 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/QZK6F2104383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc6d996ea26098c801558bfc1d4f32789cc314d2205735fdd8a88ea0f8c9354. 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/QZQAY2397721.