Cohen@Mushon (; pronounced Cohen At Mushon) are an Israeli hip hop duo comprising the rapper and record producer Michael Cohen and the actor Michael Moshonov. their musical producer and DJ is DJ Mesh.
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 0x63090e41d081c2f95f0ebce42be84c379b43ba9a88084858a0c72a6e8b4f8a69. 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/a32a9fe1-3e46-4fc3-87c4-a0b3c141a0f4.json and https://artists.proofprofile.net/proofs/artist/a32a9fe1-3e46-4fc3-87c4-a0b3c141a0f4.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 0x7b0e620b028db2c9e005c53ae0fd77f8e0923305534a123e7c75dc3f49a29af3. 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/FR10S1700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2f21774192d3591bd760fa18f1021891df8b44d7b6ab08ba1d3e163793cab4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR10S1700053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77278a20f531656a84b222c5b8d902d0904bfa52502f1c2c2a6fe0549d1804cb. 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/FR10S1700054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36f914481e7c4bf0edd052c5a50ae53e8b8015e86bb11a29501a0a1cc677470. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/FR10S1700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fedc1438f0752fd0aa7dae5731ac4cc0d876c4bd0cb4cab45ad62dc84d53a02. 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/FR10S1700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaae7329849fa8ca8646a52ad02828ceb635a3fce9ad2586396983f60c8a29d1. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/FR10S1700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf49c8daa8644a40e3ba62d8f8d89ab4133f5cc6937dd8496c4222fb3fdde06. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/FR10S1700064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a9a80a10eaf05f5ec8662acf67fc8572b927fddd4b2780fcb29b5be597b84f. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/FR10S1700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e01b305619c9e99a16bf19bf67c0cfa64f97bdc93a2f49c8b224634e0bba6ff. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FRX201661902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6703fff599bc5652b693e3a43f9f0999933869cc892f5911fbcb4c056d36f92. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/FRX201661906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbb8c665191999fec6378ecad5b1d1d62a6f76271c6d4a78ac2240b4dfd0398. 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/FRX201661914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3798e9e25064abbec451c11ed71e954b7b2c41be80ec4e78575468686bd3ab73. 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/FRX201661921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce49f7148408c74047e57d7b1883a1d9503b10033dfb6aa8653e1d79e4ddeda. 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/FRX201661922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67dac7bce8ffa9abadf10b08eb6d0124018964b5c47f2fa62b03336527f1f9f. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/FRX201661924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84a3d436e7dab53276c2553db5d34737b485eb584dcb4716d65e94464282a7d. 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/FR2X41837781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3134206ab66476c54452d943c3f2eeb46a96ecea585ddd512626da24eb414fed. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR96X1816654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9b803df984e31adb6a39e9dd23116a720d35acf3ced438c40408dda87f239e. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/IL1021910796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122e49eb1c7d6600ff7bc45195824a062a2651feb79ceb8fc9df9a7abb0f986c. 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/IL1021810486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b763bbe72dcdbe76a7e82c190c79a1041832fcd7a8a3f1aed313b42c4e4753. 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/QZMEQ2136988.