William James Dennis (born November 1, 1966) is an American rapper from Houston, Texas. He emerged as a member of the hip hop group Geto Boys, which he formed in 1986 alongside fellow Houston rappers
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 0x01acecbf7e677805d25d08ffc8ca6f78a23ab6796c51c3cffd243d4a10b074be. 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/7d0c1e52-8be4-48a3-9da9-bbcdb33a6a48.json and https://artists.proofprofile.net/proofs/artist/7d0c1e52-8be4-48a3-9da9-bbcdb33a6a48.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 0x9b54d0e575c0fe961fc0234d630b72499d0219c825750b22813c0789eab4f548. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/USUYG1013693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f370b055b870e8f93714fc18c710e81459931856f4af6ae4010f24513f3ca3. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USUYG1013695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe7d0870cc5dbe222a3e8545d3563e7f9d4e2913047461e5c28ebd3aa3c5949. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USUYG1013696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87df6bffc5e80d95a37a373b5d57f631b9c219e51b5e76040e3e7d975b741564. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USUYG1013705.
Is It Real (My Mind Still Playin' Tricks On Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359c553827c0182b360e43b434e600e1ae5dcae85afda60e8234607ec3e3d016. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/USUYG1013746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e69300430040acf1531b4548ca45a5f1ee172ba49f94b406ed99a65b9c52a5d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUYG1013747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1625aec35ece7f35410fb6d9a6272e5071adff2d7cb8d6047ec67f055df9b137. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/USUYG1013764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c446bd401e7feee60a6ed648fa09d7cf74e1205a7b93ab3d0f96cbc3670b4b0. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USUYG1013765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9604d63046a2489c98f01627939a3976cc2fad50b02d874705aa82dd35dd166. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USUYG1013775.
Hoodiez (feat. Scarface, Propain and D Boi) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4417c79dda6d9c03d14f933d92676da5712ea2df512c4dc7679e2c54251b1e. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USXQS1616208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a70c865d536351a31c89408cd73cb9faa267dfb58a053ac1afd6b883bf6aad9. 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/USHM81771362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6571c7e9da3da5a48609cdec038556088cb4d68ff8a89407204444428b7c7f1. 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/USXQS1618221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3d4749179a7e6447cf60b0dc9766ef5254ac0d42b0dce859fec1ede0053172. 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/USXQS1618239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66d16815b455c466f5bf26e62c32936d4710fe29c06ca5555c6e09961ce5938. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USZXT1200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5b8dcc83a252d22e74a37da7fcd97667221f826b60940d1dbab8dac01b89cd. 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/USZXT1202101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffaf59db32be2ecaa50465a4f41f4b8d0c21129ced6e6b6587a392b7aa1fb9b. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USZXT1019233.
R.N.D.S. (Presented by J. Prince & Rap-A-Lot Records)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c56aa391819ea9448a5ae687f63d37dfd8977de5937dea9cad636274619156. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USXQS1207359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf443177315c0858275ec35ce2314dbd293edfbec7837d17e0803fd93747504e3. 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/USXQS1618095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117a44d1393d638fa9b878facf64ace96b04ccbd186739a590dc882dd026c67a. 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/USZXT1019479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d3644839d9cface6d875b597aeeefa49e9c866cd751f8d4fe9ce4a41dadf59. 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/USXQS1618035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f6e6725275eaaff3e066a4bb3dd6c946fced8577f1d2c23becac080e1509ad. 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/USXQS1618039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab2559c3b73736bae92874e64c726cd792e798e64677471002dd7a5a923ef07. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USHM90414271.