Sons of Funk is an American R&B group and production group from Richmond, California, United States, that were formerly artists on No Limit Records. They had great success in the late 1990s and are be
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 0x903edf16ce1ebf1b43c91507eba772453b2e8e01b6186a38484fa88186ec1a94. 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/2d9ff47e-6fd8-4296-8afc-2103f5980b69.json and https://artists.proofprofile.net/proofs/artist/2d9ff47e-6fd8-4296-8afc-2103f5980b69.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 0x604e4bf19ae1c012e9f256887f03edbc3dda1a6d5c91fc8eb0daca399bbfabb6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZK6N2194293.
Cheater Man (Two Step Dance Floor Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3cc1d513af32a815436f6a124de8126a63be8a6b3c70ee1a10bc3fca1f4aa7. 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/USPO10500015.
Ghetto D (10th Anniversary Edition / Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dd57114a695911de481f799ac958f1f6dd03d06b47bc3f57b8e644d72b414e. 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/USPO10500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6eb0e7d281a10588af2cbd0152ddd0c107e75d599443181735ce26b1ae8815. 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/USPO10500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3cc1d513af32a815436f6a124de8126a63be8a6b3c70ee1a10bc3fca1f4aa7. 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/USPO10500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925f27daf8a156411de8041982203cab1843330f62e691d150ac4b281e8e5478. 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/USPO10700091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf0bffb59ada2dc00459db9be7262e2a0af31f030c43d11f037b0827764ff9b. 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/USPO19850085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71eb6a6077b803becb44fb674b66bc974ee91cff4193aa6c54acc532bd25df5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USNL19900313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37362e2092289d05a6439c0a5d2a45be0cf1145620f8322968a3c0d5c4e6d94b. 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/USUYG1018808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a6b8e02344eaa6817a3f031f0f277a37f8a52bf5caf49ad1f9e5f092c504e6. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USPO10500065.
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 0x2cdf187eb497bd855469f0b5ec0c1d8272c6f5dc9ecc28b483f8bb0e828c0964. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USPO10500092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb762bd806d54b60e53c0312eaec572120300d3a0a20405004394c69f9e4a4859. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USPO10500093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe2817688e05e63d5859f2ff0949b5d80a8b9daceed75c3cf68c29603e39d67. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USPO10500094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705e710a6e634e0afebcce3a6e527f8c693efc4f292ffc70d1d6859f4ac0ec92. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USPO10500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2ccd464a6d32a1dfb14174c412275266dc1696b27fafb8bc77b73c9bedfd4e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USPO19850086.
Take My Pain - Edited; Feat. Master P, Silkk The Shocker and Sons Of Funk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160f38c700fed4076852e08ae59f62533fa5822f700817a7b8d6585aff88dc14. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USNL19800389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e8cd9d9fc619644d1b502bde05f25c2bfbbbde9f6edad98eac9e95846dcbda. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/USUYG1018799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5846bd9fd63c77305ffe8c3cb197f462d318596f183d00a22f46dbe6d198e9. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TCADT1832265.