Three 6 Mafia is an American hip-hop group from Memphis, Tennessee, formed in 1991. Emerging as a horror-themed underground hip-hop group, they went on to enjoy mainstream success. The group's 1995 de
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 0x41d7b2a94b39e053c86b3edbfac8fe1849c82e2e2a08646f38085bc0e91b350f. 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/094efc98-40df-4d7b-81d6-93e70250830d.json and https://artists.proofprofile.net/proofs/artist/094efc98-40df-4d7b-81d6-93e70250830d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Feel It (with Sean Kingston & Flo Rida) - Explicit Album Version
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 0x65fe2cd4b20eb77939bf16c57f2231bd217c994891e09a5535bd0005e9ed45e8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USSM10904911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b82cf34543b63f37b737f3e844f73df8d2e5f77e0366ae9528406bdf6769a9. 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/USSM10600037.
Chop Me Up (feat. Timbaland & Three-6 Mafia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556c4b7945cea7d1adcf806e42f226286397950fceb788530ac045446bf30b5a. 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/USJI10600480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce47b7d6c434a3680246af5ef19d4b6b0e92008e78907d9f4356a896f6d44e4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USDHM1103918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df0e87a80f0d3bc7db4a9546708da65e5e06cd8c8472e378b4d0badf5e2b261. 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/USBAC1300905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db824052fbf71ff237068dccfdb2bd66e68cc6c059228ea81a8f50d273b1ec5. 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/USDJ20110828.
Memphis UnderWorld (Classic Remastered Version 2013)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0df749ae6c9a445181b8884a879746e4b82c5a79a3d095aa4d30b71cc237c8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCABM1333260.
Hip Hop 100 Hits - Urban rap & R n B anthems inc. Jay Z, A$ap Rocky, Wu-Tang Clan & Nas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eeac869196015c23a2a0666d570040c6aa490b53163c60bd37960ab0445d9ac. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USLR50000223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43ddaa5d377388668fa45896206c3df9eae050032d117ae569c02f21166b551. 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/USTV10100146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43ddaa5d377388668fa45896206c3df9eae050032d117ae569c02f21166b551. 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/USTV10100146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33467d001ce2412c52f2dd9a9e0668e90a46df4c2e790f5685957ab7f0274de. 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/USVI20600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e63574b2ae7fe845d1bd3019815d8f0ad6c023e29ab2513787343f1dfd6a5d. 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/USUYG1340538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d200cd53806beb1a8e94dd594dc5eae2a31944ef2f209b233883fca6a844ce1. 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/USUYG1343829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4893facf8d97cebf8dd020c3d1738812cb7ddbd08a722c3fce36a372e0fb61. 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/QZD442000661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da15f718f91325ae8362a75829b288446df1c8f5648aa7b9b395d075463428d. 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/QZD442000677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f8c3e4efd1bf4d582e9fe82afbeb9b0f94fbb400fec4ab85e90eb636b38aae. 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/US3L30408379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3b23d2477d809892a725ae932408f54d83f067595a2e17e394945521b673ad. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/TCAAW1111047.
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