LNDN DRGS (disemvoweling of "London Drugs") is a Canadian-American hip hop duo made up of Jay Worthy and producer Sean House. As of 2019, they have been primarily releasing projects through their GDF
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 0x49ebb24abfd36c3e72d2685be7ec7fc96112dadf3659c3e31b880f78a6b410f4. 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/c834aa68-0433-4ceb-8320-333bca3522af.json and https://artists.proofprofile.net/proofs/artist/c834aa68-0433-4ceb-8320-333bca3522af.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 0xec66fc0915c0f5ae6652a722a30761d5d98a01b7762af3a4492ad50a38fc0af4. 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/USUYG1419605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4952af6bd78f27888eb3d1cbb29f1b1a2477d74c63065bfadc54365374179efe. 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/USUYG1419606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadcaae08aaebf888f73985885895971d61fb75d8085c3702d9306a35f0f3bee. 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/USUYG1419607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f8dbb4f6f849454843eaf5ed8ba76e76df278f5d6b9f4421592cc1e6582716. 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/USUYG1419608.
Maybe The Next Time (feat. Roc Marciano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e65a65564380b46fdeca16d66d789defc5c375bdeef29b2a6464448b2c39fe. 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/USUYG1419609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcde5bd9d112815a5dac810e31391b6d8eba8938b6a6e67265098daf7e3d2fc. 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/USUYG1419610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef6ded677a028b9792a2d22afdd5cc5b72089e67c22375785678f3cb9f7922d. 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/USUYG1417275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5238d92e13e2582e56604b0cc7ee02d0a8d360df88dc89cb234d5a0dc0bf2019. 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/USUYG1419612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08524a1d5d1a78fb305f5977aaf09361fbeff7010aac7e69736610e5eaa48bb. 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/USUYG1419614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1b428958d74a16c37953867de16463d0d3fee6d86e8251bae8c5f13f6e0660. 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/USUYG1419615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cff3b8127943f66c7c497018a46772e398017c4bbf806c9836cd4f1e4d4420. 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/USUYG1419616.
WOOP WOOP BOP BOP 1982 (feat. Jay Worthy & LNDN Drugs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561e219f0ee16171eebbb1afcb58b3bdbf7726d9934f117733cec4523e3b03fb. 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/QMFME2343275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561e219f0ee16171eebbb1afcb58b3bdbf7726d9934f117733cec4523e3b03fb. 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/QMFME2343275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7840ddeca8287137b257c48be716628cffef2c420511f6070acb7f1216df11. 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/USUYG1353622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33bd87f24cda7546f8a0cd9d46aeda7b98cc1b3d6e9784dcb2e5941caa45698f. 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/USUYG1353624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1e8e7ad76c209c270794413a1fa61130d33d5595cf5618dd56dc89a1ebcfc0. 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/USUYG1395225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51dd5158b6a029dc4a5c1da536100716cf971a6682adc1428992ba93e86d33a2. 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/USUYG1274604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09483970592cd749a1b5eb54e164bfc067f8ce9c8fad7ea3ad422771f42bed1c. 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/USUYG1274605.