Kevin Rhomberg (born August 12, 1992), better known by his stage name Knox Fortune, is an American singer and record producer from Chicago, Illinois. He provided a guest vocal on Chance the Rapper's C
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 0x3147e1a23994d7ec88fdde9e942fd64c39c821a6c2c9e040273d2523f2b7c4b9. 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/4a770482-1e42-49ee-8779-4db0ed36641e.json and https://artists.proofprofile.net/proofs/artist/4a770482-1e42-49ee-8779-4db0ed36641e.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 0xcbdd856a55757ac38f7378dd47cfdb2eacbbe5662c1a4cc7e1f1419d3936bf9d. 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/QM24S1703512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c17238e766e5e6a79e36fb15efdf042977467d2cf462e10bbf1a8ad2bbfc10. 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/QM24S1703513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a16729c22d522d8ce63d5db191fa0befdb5ef1de43ebfc3771acd723dc12d56. 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/QM24S1703514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d9d43201a66024e79e0ace4f01fedf4f4294db2dd5b8d2b2f4e3b97f3fa751. 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/QM24S1703515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86900e506690bdcc8494cb9cddcdd17b47cfdbd8fb716ea4183bc404cdbf801f. 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/QM24S1703517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae45075ab36be38a523db24082a637a25f7dc0e0603b9552c77531706639223c. 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/QM24S1703520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8424282b413a93de496c29a9b3941e90c330c95e17b5ef5b3a465aa45022281c. 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/QM24S1703521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24071a287893a0f2483eb09a59270834d8f2efab5ae271bd26572d16fcfe22e1. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZ93L2054011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891db7a253a0ac049a62bb772d08da1495b5a8c69d6b4c496374a8bd870e9562. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZ93L2047820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682e875f36efca9c1f53778efc204c3c48739849d4f89b593a37f49fb713b482. 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/QZAKB2469127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e23398daa1264d1d0e1a0cc1c60a6bdd2e05c3cc8ea3af9aa9cddaf9f8b745. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZTAY2503508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc01100230ddf09bf2fc186e7d9b0054423bb2aa39a41bfe93ce85f5a44eece0. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:54Z), 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/QZTAY2503509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e66f44d7b0ea122b73eeefbe277231c6542c5ad502c4e2514251f640229f70. 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/TCACO1667443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea831225605f5ff01f0de73c3b9915010662bcb7aba7d70a5fca474e4fa8a0b0. 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/GBMA21863201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bad0f56dca88cdeeed9ded08a7dbeab1640a9fdd18c549ceb41392fac5e7c87. 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/USUS12100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18812198fa1329f6f5b0976534e382578b7cf1b2625af16c07b5cd7d824eb6dc. 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/QM24S2107186.