Donnovan Malik Blocker, known by his stage name Dyme-A-Duzin, is an American rapper, singer, songwriter, and actor from Brooklyn, New York. Dyme-A-Duzin is a former member of the band Phony Ppl. From
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 0x50faa55cbf3d0f80811e5cb1e23deb1b8ac48ced672694ffd45d0221689035c6. 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/549adfe8-866a-4385-b29c-23315f7f4f30.json and https://artists.proofprofile.net/proofs/artist/549adfe8-866a-4385-b29c-23315f7f4f30.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 0x2d1221d0ff1df0c4679192bbb608e55cab25e9228030dfbccebde7984c263da4. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZVEM2323796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0436d2d5353d7cc03be96d5924cf9c86c6c5181ce57321c3fa8c9fc8069bb1. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZDA61809253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74837e498c91ef1cebc398714cfd83bfb7aef98ada1bb88517e0baa355d6061f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZDA61809254.
Ghetto Olympics 3 (GO3 Deluxe) [Deluxe Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdaafca5d73ebac7efbef3d1654a435cae4db5399006077dd41d5be5645535b2. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/USLD91776078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd497aca43f5f18678971589b2736bc8b8836d7acc180318f74dff8e54c7f336e. 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/USLD91774729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35a0d57216ac8710a53799472747a7f28e096f29089e6af717d76c3f54b0d54. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/USLD91776405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e32a430b7f036adcd3cc4304c018aa16a465d8c5b19a7920f2ec56a1049135. 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/USLD91776406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdaafca5d73ebac7efbef3d1654a435cae4db5399006077dd41d5be5645535b2. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/USLD91776078.
Heaven's Thickest Angel (feat. Niqa Mor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb178f6a10d70a402dda37fee5aa0af4761a1dcf4da52d6ddb29971b7e13bbf09. 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/USLD91776407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69aab7619b6b77567f93118bbdec0a7ff1f4eb9f004bab38736ccd7eb09cf365. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USLD91776408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227b4d4785e3cfb83b400024906c04d688055299d4a4333e621dca70ed27a36a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:48:12Z), 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/USLD91776409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd497aca43f5f18678971589b2736bc8b8836d7acc180318f74dff8e54c7f336e. 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/USLD91774729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dd802ef597f4a67c61e6e93ad45e54f5921a81b2e3a59fbf4ba37c898336be. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZWFP2530704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2bfed3bd8b57ab34c38cf57ccf198f11311490a31c4edff5e0fd1d6ef15b6f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QT3F62505924.
Fly Young Gentlemen (feat. Dyme a Duzin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae22cd4db8fd5f3cdfbfdb249807f5a5fdbc902e0fa7de9d4314f5908844ede. 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/TCABQ1366324.
New Brooklyn (Remix) [feat. Flatbush Zombies & The Underachievers]
Peter Rosenberg x Ecko Present: The New York Renaissance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292dd373faac21a1bc9c818cf05384718aff59df7464cd3ac3d29d0dbe63934e. 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/USLD90805026.