Osher Cohen (Hebrew: אושר כהן; born 15 December 1998) is an Israeli musician, lyricist, and composer. Biography Cohen was born in Kiryat Bialik to an observant Jewish family. From the age of five,
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 0x3331441fbbb8d12262e721245d0307c21fab2bea47d6433f2acdb82c8d863262. 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/09a087dd-acbb-4906-89ba-02e2f82ca10a.json and https://artists.proofprofile.net/proofs/artist/09a087dd-acbb-4906-89ba-02e2f82ca10a.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 0x4e175841f7afa01bde1b0cec3e5d18cc8b24e225eb2e27acb816c6d0f4089541. 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/IL5841300295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e43bfb37bbc88d35b34710acd49a09a55de9479aee445ed1143e518ae5c3eb4. 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/FR10S1568958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8706f9cf1e2583ed15c7201d544c2d34bf75797b22de77cc2ba5edf8fb3b04b5. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FR96X1735017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddbeff1e3798a17fbc73a03daa30f9c33ac7fb3d7a5d9f8117c5e746990a61e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/FR10S1769972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe301dcd5db7e8f45107e6b799b16817b4e56aae84c0743944f257db6035ac7c6. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:37:20Z), 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/FR59R1871038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09281c024002b97a71167030f69b50ffce4ddf080c210b70b58e3929612c644e. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FRX201859488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2eb2e3c081df2c2f0d18c78db57a01340cc032e03041738d99493a18adb0be. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:49:31Z), 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/FR2X41880832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ef8920f8c0b355f27412388ca42220c01b92d0f1632c3c37df23612a733698. 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/FR2X41851369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6e1b3b2fd9213b7cf6f109861ce5d57248a5f961997e523d936ca754d25286. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/FR2X41566776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921810d2300795937000912ad91612be241ff158707fa2ff84ab4fd639911cdd. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/FR59R1807124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f09390f45801b6a6af208f87f22612eb8b6f716068f61eb4a68351d6c6419c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR59R1807125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8618ae6464624440055cc6bbfddb046ad059d69029c8b590109c454952478a2c. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/FR10S1923563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d9afb69d6d9098b9ab416a5077c603ce57d153c49038e10d19eed631e04329. 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/IL1011901452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac85d52defc248ef0cddc11967e5269d23b72b4484de0ca7de15b1adc8447b37. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IL1011901976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187475550303d6ba8344f25aa4f31e6fe82204bad5ffdae349d3f2e2fa322947. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:31:25Z), 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/IL1011902474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d556e4c206d78388cc1dfb86a46273f5c8e68075796293ee4b7959fc76aecef. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-22T00:02:09Z), 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/IL1012000131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e4b05239cbfce702ae1fce35ea529ca4b1b7602f097231d416780f4bf57b30. 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/IL4432100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af7f54b5c69b30cb7b421e5dd4ae2884048224e6a1f646a8ca87d585786aa91. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:21:15Z), 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/IL4432100256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b10b471ea990e9186eb989c9e284c799abbba5ac8fe966d5e85f7d3af7665e3. 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/IL4432100249.
תמונות שלך (by Offir Malol) [OFFIR MALOL & YAANI CLUB EDIT]
תמונות שלך (by Offir Malol) - OFFIR MALOL & YAANI CLUB EDIT
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1a628ead90427b8b4a800537140201c47c3a92295d0dc59d28f0016f04f213. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/IL7532212978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7910f27f5c190b4a45632abf13b518e4392b78d4f179e9f8b0ec9de63b2500b. 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/IL1012400808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7910f27f5c190b4a45632abf13b518e4392b78d4f179e9f8b0ec9de63b2500b. 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/IL1012400808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe322cb5535c69478c33e002c64d0d5f5a0332bea4fc82d39132db7322197432c. 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/IL1471901519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8647eaea1c95cf1ccd8bfdff87bca4110806dade12bcb91cdd59660f0293242. 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/IL1471901518.
טריו בריו - Oriental Version - Lidor Zirk Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b1d3744938c578b2a1733a9e01c8f7e2c12fb12f91d4e06e553b0ad8dae076. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/IL1471801278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8647eaea1c95cf1ccd8bfdff87bca4110806dade12bcb91cdd59660f0293242. 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/IL1471901518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe322cb5535c69478c33e002c64d0d5f5a0332bea4fc82d39132db7322197432c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/IL1471901519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb99ec4e3c7047befdd8ffc8a1a961e43449298f69aa535f59715f18365b8adb. 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/IL1471901520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542aeac90f1c05cd4bdc3c304eca59cac27778c21a07869d5546e2fe925faea3. 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/IL1471902506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a910c2265dce0067ed02160fd549ef66745fb59b12660e8bfaa045feba28bb1. 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/IL1471902507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e818abb5b0ed0e138feedc32069c22ebf65003d5299db62ffa599ecb87306b7. 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/IL1471902508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b1d3744938c578b2a1733a9e01c8f7e2c12fb12f91d4e06e553b0ad8dae076. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/IL1471801278.
טריו בריו - Oriental Version - Lidor Zirk Remix - Acapella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa8fc71185e3b4b2fdc71ee66b41a42f25f07ed74dd5f75417d538b1dfaa1fa. 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/IL1471801280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81d78ba5d9955ad98fec0e4bd5af87306be54a77254359b4f79c6e0ea3d2e9f. 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/IL1471901528.
מה הוא יודע - Lidor Zirk Tropical Remix - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f00045672926b6934f71f03ff1338f36b3e32afeb40156ec65adeae4fc9c5e. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/IL1471901529.
מה הוא יודע - Lidor Zirk Tropical Remix - Acapella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6eab30801f169401c470dea599ad076dd7db498418f8b7dd51e0d2cee0c45d. 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/IL1471901530.