Maxwell Dixon (born William Brewster Dixon III; March 4, 1966), known professionally as Grand Puba, is an American rapper and record producer, best known as a member of Brand Nubian from New Rochelle,
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 0x23bbe91099e80ba98b3a8dc1ca8d35230fc195b2c5ec8d04a7714c376c334f34. 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/d45bde47-c0d9-494b-b555-9cff5b1f019b.json and https://artists.proofprofile.net/proofs/artist/d45bde47-c0d9-494b-b555-9cff5b1f019b.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 0xc1601f24e566931a9ba93d32238ea714639b6bccb2780ddccc323723ff7ad4a8. 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/USEE19200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f4b5dfc618421d979a6d1bba2678dcccd309c08bb3fd1b8b729928b4f007d4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USEE19200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e968fb8c6f13410a950c62676479162088f8a46b3b00617dbe9834f386b0e73. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USEE19200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f52732a1a63b08fb7bc5493d5840ee11001b7b225eff03fd5cd49e17056cd0f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USEE19200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a7bf442877def02b1796bf79fcb71ac6089994cc744ad5cb4259adc1d111e9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USEE19200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b44be2f7f10cefb60f703439b4364c8cbcfbe4643eacb413680c212a38987c. 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/USEE19200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964c6f862bfa4d364453b8bb28c2bb90177d4b9554e644418f6854a40f8db329. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USEE19200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344aa5cb513f69a61e8a34e79e96f06d10c370cc46685487918bc7ec049a4ea1. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USKO10111803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19495483c40dba96472a826924288472a73a6678b9134b4193ddf545b664d99e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USA560960046.
I See Dead People (feat. Lord Jamar of Brand Nubian & Rell) (12")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb038c5c20acb4fe27ddd9e4add4f4221d08709bf28a99cc3d1e782fb32d1e5b. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/USA371141021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd5b0bf4f3b18e838b843e9c0bef93584eafd2e48e04b0eeea7d2580ea93b3c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMDA71567265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6281550c26c0c7e9dd2b9f25d933e140d39ed960f9f513a9ec2baf0f6189f340. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMDA71567269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbb080d204f6cef3757f01041c9f22cae0a1f461828514c52a2b85678a782e6. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QMDA71567270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70790689be8d17063e69a58a97628360a37763fc72efc06755ebbddee6f9c90. 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/USDJ20500119.
Forever My Love (DJ Suspect & Doc TMK Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9fa4de4767ff1563731d2021a11dc86de8d389a1ed56d8b19e941a660128cb. 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/FR4EO1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327fce714d9b3a1168ed073c7dc5342284f65c65747bcd6256eabf9bbbbed61b. 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/FR4EO1400037.
Watch the Sound (feat. Diamond D & Grand Puba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64bebe696a8e5383512a9ae21993c49da1118dfc2c142109289fe3108605fc2. 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/USSM10904573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327fce714d9b3a1168ed073c7dc5342284f65c65747bcd6256eabf9bbbbed61b. 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/FR4EO1400037.
The Awakening [25th Anniversary (Remaster)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f32f6f747cce715697c81f7bdb5ee2a827069acefe056b358430033e1eb7af. 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/USTB12000544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3135c8a5594fdb542c3938fef21cd6a870dd7d4093a84a2d27ac23075080c3e5. 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/USRH11301089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc12b6d6913a84880dd385cbd5af20a6e4fb2aa7e75dd15d98d7777d753f964. 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/GBVW22000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ca0f9e9fc2b82132bce34d0d6b9289f2fc1637578f6accbff5a9615995637b. 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/USAE81140528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fdc701eb5f0fa2cd67dc4bf9221958d52177b27f85051c4cd200f0394a068c. 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/GBJAJ1600106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fa7844e3863daf52795fd143f8d2d16fe0980cd46a1a0a37a6c0f8ba09f8c1. 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/USI4R1040833.
Sometimes (feat. DJ Jab, Sadat X, A.G., Reef the Lost Cause, Eternia, Everlast, Immortal Technique, Slug, Sha Stimuli, Grand Puba, D-Stroy, Roxane Shante, Audible Doctor, Ill Bill & Roc Marci
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38139b89e3b466f0893f1b7b8c5d3826572cd5ddc024376566b686e3083f901d. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/US6881000497.