Mohammad Hisham Mahmoud Mohammad Abbas (; born September 13, 1963), commonly known as just Hisham Abbas (), is an Egyptian pop singer best known for his hit song "Habibi Dah (Nari Narain)" and his rel
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 0xb6236439d35f2fb4a6f1620dd6d043b31ccd7e629856ad6e74849a7542690cdd. 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/71e9e818-482d-40a2-9c40-934afb6b3d73.json and https://artists.proofprofile.net/proofs/artist/71e9e818-482d-40a2-9c40-934afb6b3d73.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 0xd3194714eccf31663c573691382c25308acf8b31eafb3cb31e3466427b5fc627. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/EGA020500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba85426adbf66c76457f8a07d18f964cf2b639702ae7f301933b4bd3f0c27db. 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/EGA020500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103f2b2bad08707da7d4f357b908bb85d0c9966ffee4d0b036b8cc40b8b9f7e4. 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/EGA020500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca407e02acd971437ae4a6461ebfd923f1a9d96446eefa925ad50497ccf92d60. 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/EGA020500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5344d3836d98423c500b5344bb80b7d4dc1b8662e2f141db619141010040faae. 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/EGA020500082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1254c4e1447a13ff147dc4a941e719f7d3aa2d18879b7dae8b113651a6e3a662. 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/EGA020500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd61fceb98d0e0f6ab0df8a4cce0ec480845ae69263fa7d1cfeb677ccee951c9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/EGA020500096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4dd57ecfb8528aa84005b54504bb27b41de7cd48dec66903e98d5de70eff6b. 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/EGA020500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc491326eb1b67ab9c1304497b31a76f2058593ce747c95ef1853075285be3013. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/EGA020500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ba9f6d87d89f0e29432af59a36c112a5c6c00497d592d0c4594b0523bfc326. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T03:01:51Z), 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/EGA020500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80edeac0a994f3a7f90af20e8db78603cfdea78aa18f5a8058271c5826bded2. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/EGA020500128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3106d578a47387263f5f2741b0c3ecb717257892de89042428476a71d2e2d831. 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/EGA020500129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382e2fec0089e8c7901ccadcd3a113bb574006cc34a55c5393b8bf1cc76e6741. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/EGA020500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade23585f777428a3d95f131e7cbd4416183980b6b2a07397d649c341ce97851. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/EGA020500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdd5481389a7033851a325184a5bb715d54b8a9a85ce87c403ebeda45cb2efc. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/EGA020500142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c9764d2d837ee8b5a102e74fa953e3c637b3f84bc79cb879d94cb990573751. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/FR96X2365954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd682e9abe5e2d7f84226a6b2cd5dd8479166b7339273430d1b4befab18e4c006. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/FR96X2365956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fcf831fa8097a44827cbe3ad0b8087aa9e42ecdc3db2d03e584853a7ee2309. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FR96X2365958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82ec3736d932cab4ef572d5b7f83d50fac02994f2477287f2060e1069ce5a9d. 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/EGA020501673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f35b435ed3bf3fa5ebac8c744f56a5863b1d6c58d2f13ee5709912b4582a8c. 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/EGA020501674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b88984437d4989e6b93cdfbb3552bfc8ede6e42c499386f5c400087e20f440. 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/EGA020501675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bee010164eee79bf8917ca0e01d8191ac6d2b4fcd327762909d968e2bdc7c79. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/EGA020501677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bd7c7c3add42a45a1b6e0cf0ff275b3239070b8c467e9025bc2dac1a989aac. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/EGA020501678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2dbe2c9d9dcaec21770959390457d521982c257cda0d153f5d1c08ea7ca0ab. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/EGA020501681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336e74f43b9a890ed17e7573699b09e16441359db7baccbc4e3b8abddf048d3d. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:04:28Z), 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/EGA020501682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893dd603230e765a4c789f7acc94dfe043b73b54feb5f96de2a483a4ca9b45f4. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/EGA020501850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b278aaa8aaccdf23e694a7b7a0c7ffbc1e1bfd0a04240c8df889ebcc94ad467. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/EGA020501857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a6aac08e29eddc3bd0d3b779cd219e5061494e9066fe79ca0e285f756606af. 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/EGA020501859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58038a7d17690523e060edce6e3b4f69b8a823f5924b5560bbaaa0385880273e. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/LBA0H2007685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfaeec03eb2902b9375e381170a6911e275be0767a6068101c457c522f57cdf. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/LBA081105598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9c0bbba9870c5ff6377426ab5c0bba0c0e9caf318e37dddbfabf010ef3638b. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:45:08Z), 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/EGA010525322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00be6a059eebe990baf8fb2fa1dc8ee0810b9ada7887c3aa253411ff2c65bc1d. 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/EGA010525308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbacee171f4c7441098531a94185068b57a86c381f6ae4d097ebe7bffa81dbf. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/EGA010525309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34001643182c8c14d67a51c4896240b4764be488e60ec0d7ca085682e73562d. 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/EGA010535277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb609f2ee6e4d001ab590774b472fe8aa3bcafd50827fdd08d05a939d7cffde6. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FR59R2395501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277ea5d461efba5f16132d3bd2db3d344ea7501343382179470657727754fec5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/AEA182300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a9d5e8ceebaf33a14cf7ef6bb07b7f74b63a2dec19eaadb09d92bba0581682. 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/EGA019000673.