Kelvyn Brown (born 1 April 1991), better known by his stage name Kelvyn Boy is a Ghanaian Afrobeat singer from Assin Fosu, Central region of Ghana. He got signed to Burniton Music Group owned by Sto
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 0xf4d2a96ee341c76ec1a5bb96311769e7d2cc7fce616573f93bcbb51640b27493. 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/cd7f40e7-99f5-4bb4-beae-98f89c302e88.json and https://artists.proofprofile.net/proofs/artist/cd7f40e7-99f5-4bb4-beae-98f89c302e88.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 0x69d6c3568f04a34dd424256f58ebf708d982305376b0ab13ffab56aaeaa4a32e. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/TCADG1780543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1395dc7bd3462ec3cc2fbebf9f47394751b57eea3778ac4f455191f1ed84fe64. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCAEA1814773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27bb2adee0c15c756a63968224456f18e334a2a7dc891796ea4a93b2cc69dd3. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QMEZE1949748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522ba801b59b2741d76f15c37bc51c04ab6fa31086c248e87485bb7c3700993d. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QMEZE1949745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de42f809f65bd06d2b071651082029105c791f65fd1c336e1150774cd0bef1f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QMEZE1949744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdb6c764df853518062f92afd5df192aefdd374102b655784cb8017058588e1. 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/QMEZE1949742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916abaa2e55a84a892224d38d96d9f68fcae9f57564d4fb6498fbe52b6138ccc. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QMEZE1949741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509941cb551ee81675cb160d3e001a3d4d813a3b0343221f6af438436c6fb733. 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/GBX722000236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509941cb551ee81675cb160d3e001a3d4d813a3b0343221f6af438436c6fb733. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBX722000236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716bd846ef1f4bc2f6794bdf0b8ae7a7961331f54373df3181ec1dbdedb4cc51. 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/GBX722000483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a7521a0e4af3e35511216581fe2ee09a308d978d32584f868b58751eb65cda. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBX722000484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec8c9b60d4eec13b9e05ab5a5103b12e73441af2c229fef04127cf0c4e4f433. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/GBX722000485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2b81c225d251299046be5e3d3ff269624bbcff3ab38b6701e897e0ae8cde20. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBX722000486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c83c091983db3983467fcb1dbc3f719efdd267439348a0193782a50b52f4a7. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GBX722000492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcadad3113ac8e9816ccdde9d77ca0133a509721c58123b3cb54bd7e40e1cda. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GBX722100392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bbee1f4bf2a8f808dd058aba8680f180cb3d7b672864f809bac075d18c6d7e. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZNJW2155105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc962e275b7dbe81ba82075c37cf66b942a28192d8f6d844be6f86cfcee3156d8. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/QZW9L2215921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca879cef7b0cdcb2e3acf3eb3787825ee055a92c1e0c0b0287b5e01ec7dfc13. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNJW2389222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd9d4727b54d55202a565da060fffeccb89a7326a6602376db0e3fa8c2c1df4. 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/QZNJW2389223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad332dfc72a0ec4b8aa392cc395ad6f89690c0882ef4b4d0db2cd8e6815507e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNJZ2265103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68ecf054dc66eab75f002dd82b4691bbf3e85edbb9d49f98da4bc9fc5007645. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZ5AB2490541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838e8be93bc52c06caa7efde0eb5ca364a3e6f0d43c00b1359f03fad380a8710. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZNJV2494010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9374f98fb76772faef141dbc0ed2475d380d58c8f0716dd1c8d599cc08a746. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNJX2548896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0edf1ab796f41262bad8da04d48e424eac759d72a325fd19b12b6033d1c5aa. 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/US38Y2312953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a513201554f9d6fb31013c7beeb2d2156ff1aa67f0fd98f7814bdcfecf0045a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR2X42225297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a513201554f9d6fb31013c7beeb2d2156ff1aa67f0fd98f7814bdcfecf0045a. 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/FR2X42225297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0914b20397e631923d641bc3e0ddc61feb7da0f809f0a9c7d6c94172a66ed3. 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/GBMA21886190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea47f14390ad6e727d01a6288cc50e517f918ce102d8f6415a7e5d4705e91d8. 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/QZ5AB2486978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a336bcbeefc3d37a85fedb7cea94316332acf6b4e970c6aa2927f2ff23eb71d. 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/FRX762105483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6137f31de1223423be05c05fada8470724c2ff2e7043107d85b2712101510230. 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/QZNJZ2422836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f0ea254dd134134dee2bed1f8202f2c68a0809a4cf7c9a8cdef1ae82a5c1cd. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZNJZ2312356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7f37a50357431c2987e8359f836d137b21af239ff5c72331148987ab396923. 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/GBZB42100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603ae3a171e5e326de10d7ef778cd79d240587e164df333a966a598190fe5414. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNJY2104968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1bc4ecc121198481a75cc3413f23ec7bda0e0945e254e69a5a21ad10325ade. 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/US38Y2312946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0edf1ab796f41262bad8da04d48e424eac759d72a325fd19b12b6033d1c5aa. 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/US38Y2312953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1bc4ecc121198481a75cc3413f23ec7bda0e0945e254e69a5a21ad10325ade. 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/US38Y2312946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d1bc29d02e09380f670b0fc12865d60d016e1d2d546b9fa84d80c418bfa186. 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/FR2X42001994.