Kevin Lamar McCall Jr. (born July 25, 1985) is an American singer, songwriter, rapper, and record producer. He is best known for his work with R&B singer Chris Brown, to whom he signed in a joint vent
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 0x363429452be08e5376de9d2e56fb5e40b06cab17a5536fde8f2a750e60c33a8e. 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/6d9f404e-adfc-4067-8cd6-98442ca0837d.json and https://artists.proofprofile.net/proofs/artist/6d9f404e-adfc-4067-8cd6-98442ca0837d.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 0xa1fa5eb891c77cd80fde00397315d4097becdedb527d38669c041eb1b0573833. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZFYW2045289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815dd04a894f46cb82fcacc3fb45ca9e7603adc8c81da7f0af09d020dfdf8bed. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/QZFYW2045291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cd8dd94db6fb96bcf1c419c9144a9c7991ef2e2142d648fcfe37d36abfd944. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZFYW2045292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c04ab90034747ba4fb08d8034408a82bae7ddb46d1318142e0dfbed19af7ff5. 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/QZL382575871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3edd4ea8e1315d19c90a2e6388fbceaf22602a8a03e921685cf83d5d51daba4. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZL382575873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe573d8caaf6340635252aa918c4e488a30a184767e57c26de88533612f50dea1. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZL382575877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1616f86acfc40470a7a431cb60c07d16398f148fe69aa6d616adf45ba7225d9e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZL382575878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e245e91575e4073c6b2aeaa025903755c10ef7ae54906f6113bd3e84062063. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZL382575879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78da731c6ab05ffd858a5e42444907fd9789853ca11707f3d05c9b9e9d74fd0. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZNMT2584064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4156478e5d450d09151fec25a8907707c4a7ca26d64bfcc7b0629d84bcefdf69. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZNMT2586891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da30295f15351715795c53052342fffd23f01262f75d8e27185eb2357b9d4a4. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZNMU2586202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8546463d0c9216bfe6454d5b6dd6e75d622af7bfcb6783b1b754cc830eb7256a. 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/QZNMX2534845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071ce671c15201e9476e89b9b97a5aed4dd31b8ed835ef9837d8ea767e322db4. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZNMX2554865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7c099b5910d4e535f375ce494c4dd9c2b1df30a3e4edb27bffc146b886dcfb. 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/USRC11101006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5ad1318848b6a09ec0ae7e05afdad976fe058b460a558a730ce1d2ee6d82eb. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USZEG1600552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cdc0ecd17563dbe7d08f42590c97d41373016cab6a4ee9d64d37a1b7dbe99c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USUYG1070638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe20eb7348f4a1dc19dccdf784a4e44964921b23423116702c8e6fd6fbb3e9d. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USUYG1098550.
Pimpin' Ain't Easy (Teeflii & Kevin McCall)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcccaed89a86f6732389c4dc0f6c8d062d8ea7688d30a89ee84b4c5e08db747. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USUYG1098560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbbb6f39f4ec102b8e031c36390db1d7bbeb84effd67d32f4bf06e795575d0a. 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/USUYG1098565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6483508166f4983b803536ec7a69dc42ef417df987e4f91a9da4d742d3b3afbc. 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/USZEG1502242.
I Wish (Interlude) [feat. Kevin McCall & Chyna Tahjere]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b15d6085c64363733e4de8b70f3ae48317951713662db69ed978fedd46af2b. 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/USRH11605376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c87b9c07d95520af99873175bc6a79b610b03fc4feae87f44d13ea106c60e6. 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/USJI11000113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4ed63b8efc2a20995872a0866d4e1c95df03a8ba4dcc6c87a9601e04cf132e. 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/USJI11000114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e053a8b998b4fa880b5d671eb95f67879c6037272a713c6c1f6d58a274cd313. 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/FR5R00905823.