Ian Sanusee Koromah (born 1995), better known by the stage name Maxsta, is an English grime MC from South East London. He is signed to Just Jam, a subsidiary of Sony Music Entertainment. A fast-paced,
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 0x2577202d498f35af96ae783249328887a8545700eb204df1f20a763db2ca2dea. 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/057bb58e-7b2d-4a28-8116-8aa040983ee2.json and https://artists.proofprofile.net/proofs/artist/057bb58e-7b2d-4a28-8116-8aa040983ee2.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 0x59f46924205c9fbc35b098879967414f7356c1e883a48d6a07acd3d072676488. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBUDY1913903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce214dfecb7c5367b7cae33d396f4b625a851054ae542ff97f7222b6f918c69. 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/GBUDY1913908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e752f1a09f190db3f33e7b669d7acd6caf43302a0949136e6a9a0552623487. 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/UKN4T1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe560e6ccb41be1b938526e0b450d60de22162da8a8c0deea801f3dbb62822032. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/UKN4T1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a04c3d3ed2be4f5bae3c6f837b43f8e18f543a1458af3438325215ed5e2cce1. 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/UKN4T1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca6d37926010366fff2e1fa4042f275a226aff1b05ac8a14ca599ad0381e494. 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/UKN4T1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00abb1bec6a803af22a7d53884cde3222329e7274cc00e13fba7f55b98fe7f5. 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/UKN4T1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef165f011716c712f2c9a384ee026737279189e38cedb0a2b0fb37f7bd601e96. 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/UKN4T1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f201e76b1c86d3ee68722ddd689633d244cc6f157546093b896afd13f828f2. 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/UKN4T1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277c07075c869ae87cc7c4c6a008fc92d38c20c2e910d97ef4478021ba217b9d. 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/UKN4T1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8bdedde7dfbb2f99699a1edf90644f9bf4e8a65110e84a94ae649c2f0f870c. 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/UKN4T1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a5f289af717ad5cb74fac5580e019da801e2fa7b3c65741a121b8aff82f91c. 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/UKN4T1800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f6c74cf991f6e01d36a7fec96fef11d482626bd5d8708ad3aa9c8bef41d35f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKN4T1800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd862cd459e58bd1cd65612ad74ef83f9f2edb5976c5e3df217c4089bf7e1352. 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/GBAC81500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a922d93d0195937e54fdcea589d7c9fffa4eb8f9147294c06eda51f5b6b45d. 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/GBAC81500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd73f01346f2c872a4d61f4a74b02ee3c527c8997fb262d774c32c7efc2d5deb. 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/QM6N21952668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd5710c96025a690df616e704b4c89229d1907be413dda129550debf212dacc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6N21952671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d92f2f466748c84974dc01ca23d214484252f985e2f3c5756100e113be01d2a. 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/GBUDY2023001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de5a395586d0716c27660e4f181d81b2d7c3ddfe9adc81db35dfb2ed8cdfadd. 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/GBMA21857525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3630af0948ce7aac69209a9c0187123ba9aa1cf9ba6230d27b6293b303d13e40. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBMA21857526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa895b936068629b76a2f1b452cad6be42d8e01d24973c3cf418025b4308325ae. 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/GBMA21857527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d73d16c7539bb088b6a663a3c6024381bbc78133e36c088fd8e6c6b14c76e2e. 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/GBMA21857528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc77079fb7373791f988b59c2b7298382480d2ed6c4f2317e5ef8173578cff3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBMA21857524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc77079fb7373791f988b59c2b7298382480d2ed6c4f2317e5ef8173578cff3. 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/GBMA21857524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef165f011716c712f2c9a384ee026737279189e38cedb0a2b0fb37f7bd601e96. 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/UKN4T1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe560e6ccb41be1b938526e0b450d60de22162da8a8c0deea801f3dbb62822032. 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/UKN4T1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277c07075c869ae87cc7c4c6a008fc92d38c20c2e910d97ef4478021ba217b9d. 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/UKN4T1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f201e76b1c86d3ee68722ddd689633d244cc6f157546093b896afd13f828f2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/UKN4T1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6249f20a59f576e09ad8112404f34645ba64fe94e0cbbbb6515709ac49c7e2e. 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/GBLFP1775987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c5d538003946b6e6937679b3a1fd8e2b94fdfaeab1a99dc27e6b29c7089686. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GB4PQ1000012.