Danyel Robinson (born September 14, 1971), better known by his stage name Dru Down, is an American rapper and actor from Oakland, California.[ allmusic - Dru Down biography] He is currently a member o
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 0xc77302cce676da838c2774bc1dc5e9f09a7d8a4ae4df2a28f23cefe48d02bc79. 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/63560cbd-d5fe-46de-8fe5-1737fb10eebb.json and https://artists.proofprofile.net/proofs/artist/63560cbd-d5fe-46de-8fe5-1737fb10eebb.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 0x90019291248d2bf1302965e54e44a0a1048732cd47d7e24ab22eed9703838e0f. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/USA2P0716397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c803d0e2237d05c94277d26a9f4b40b233a0eb15a4312feae5ec72d8125c46. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USA2P0716399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e98a096a13e31c79b13408244803e766b02014993af66eb73e81daec7b2108. 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/USA2P0716401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1d5f4e42ddf6320b3d1fdb9951c2e60c62c01956aa27f090e02ec8ed3bdeb5. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USA2P0716402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8147f07e1c1c4632832404b743a37dc08e14206c77a42e748335992af6ca28. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/USA2P0716407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9421d25caf0497d6d1521dfee12d2f7a94986fb82f680ef03bd68f2d86e3d2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USA2P0716408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7730cb8ea8d3d3481fb8f8ddf22ef721a4602ab736c878d96588a4a101cf1c12. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA2P0825016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241833d3846d78073bcca679dfcfee1b68fb5ace87e68da6bc11aa6390fc297a. 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/USA2P0825017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d3b2e142f123b5a12afd5e4eec2a8775e8d9ff07c7999d4ee67aa852913f2e. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/USA2P0825023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f6716a280561cb9ddf7c5436de6ad760f8d4ba6959c80f26ebe47636343a65. 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/USUYG1015920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f296fc00a2d3e39409006fd7b3ba1d1648e3ef8ca733e6cbe30ef499fa4aaf. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USUYG1015925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce424593ab4b062f86bed382b08a0679be2ec54066a16714f41289a5f692ea2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USUYG1015927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fbc9388ede86ffc8d085501f337e573546311b349af68c86789a9233f2a511. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:49:30Z), 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/USUYG1015930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3529ad90d43094a3a58bdda9263c15804e211ddb330fd0dad2931a8643056c08. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/USUYG1015931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d51a0db0efe4173e8c7363eca72602502cf9d3c99c3fa86c64a84b6e8db8dcd. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:46:56Z), 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/USUYG1015932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb47db5de7ddb20d3ced60aa14124178cd14be54aceb3b58097fbdc64d3b7ff8. 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/USUYG1015933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e219b301117f378360ccac3c540d5dfef1a39ad783a56585b8eefd3e8bd9225. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:03:33Z), 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/USA2P0716419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ef9b1995a2cf399431aec876c5e14d18b13bd6901ec4aa7a43baf7b237b5e2. 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/USA2P0716395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae033571d7aad3eb57c9ef75a92034d12485fe5639381eabe242c83ce7a60bb. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:11:14Z), 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/USDYP1101161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89de82582132ddd676f6e36e5c4b9f2251d5f8c41d4cde69b7af091db908aea0. 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/USDYP1101165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb661c008a7bb5d354cb77ea61ca1028d479ea6b9e2af7f8ece14a527a996408e. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USDYP1101167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ab7f57e6e6fb5e76b6026038dd0ff9d56213fafa4677910de9be5f68a563a5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USBAE1002445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7defec25a3dd467534cce87493b9c0fdcaa792b77729fca712185dcd459e0e29. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USUYG1016060.
Get Some (feat. Yukmouth, Keak Da Sneak & Dru Down)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a29d15bcb18c30b9b04a8f40bb950743d4aba40ec2615243c822c25a8c69b0. 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/USUYG1252008.
The Jacka Presents: You Should Be Payin Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b0a19789c6aee8d24bd98496ba7fbbed48bb3473d595547b6c337a38aad9b1. 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/USUYG1005436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f62180818225427a43db76cb5abfd5d8068adc6ca8f4a8e3000e09d0c2fdcd1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUYG1099465.
What Happened to the World (Street Album)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5288bef86d38dc9870159f4fdebbbdd4ec7e53e1483aab7edb28a45a9353f90b. 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/USUYG1054643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb78b732d8a3d1a8d00a9e33b471dda5c3074ebdf4ef1e803c6a883a028f2b0. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USUYG1000028.
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 0x3072d3619d5a215e58f8a0d401e874f41d3627d1e92833aa7aa4e2b1ee217d6b. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/TCABG1214659.
Revenue Retrievin': Day Shift & Night Shift (Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa656d951e3f8a5ee7903b39598010fc1c1ecedd41436bc0ed75f983ec602a5a6. 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/US4KV1000036.