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 0x7608255981e7467a65b529518df1beaa123a9e6f80c44d5744b3493f964ba038. 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/f28aff7d-a098-4e10-a935-b644766ba1aa.json and https://artists.proofprofile.net/proofs/artist/f28aff7d-a098-4e10-a935-b644766ba1aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hammam Fi Amsterdam (Original Motion Picture Soundtrack)
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 0x045da46af40ada5c643f0e345bb545b984fffe60f60cda191ab9dca374b4cee4. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZES61901804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c547471ced5f9eac39e08b0ca39df903724d122387f455b5c3af757785f9c1. 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/QZES61901806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd2b76ce6109881acb0fa2eb2f1b26e98db10c22e2736744881bf8daeb445b5. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZES61901818.
Awan el Ward (Original TV Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594247a3ce39be12a8b2056d6effe58c6a9adf1cf1a8b36ad76df915452441c7. 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/QZDA71973793.
El Nesaa Kademoun (Original TV Series Soundtrack)
El Eshk Wel Dam (Original Motion Picture Soundtrack)
Amir el Zalam (Original Motion Picture Soundtrack)
Maali el Wazir (Original Motion Picture Soundtrack)
اللي بالي بالك (الموسيقى التصويرية للفيلم)
Ahla el Awaat (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320d82f47022b2efd133eabefb1fa87603a3d3e3c0876e371f0efcbb53cec8f4. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:06:21Z), 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/QZDA41957227.
Lekaa Ala el Hawa (Original TV Series Soundtrack)
The Yacoubian Building (Original Motion Picture Soundtrack)
Akher el Donia (Original Motion Picture Soundtrack)
Tabakh el Rayes (Original Motion Picture Soundtrack)
Ala Ganb Yasta (Original Motion Picture Soundtrack)
Shaaban El Fares (Original Motion Picture Soundtrack)
El Farah (Original Motion Picture Soundtrack)
Khas Giddan (Original TV Series Soundtrack)
Kanoun El Maraghi (Original TV Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ba3e8b6dc73023ceb07f77261d96bc705b473800c9d2e95b4180a5bbf9eaef. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZK6J2170894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2d95f57743fa7f2c936f99bfa9d030268c7706d4e024edf5c069eb415a4a21. 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/QZK6J2170895.
Bel Shamea el Ahmar (Original TV Series Soundtrack)
Fasel Wa Naoud (Original Motion Picture Soundtrack)
Ezaet Hob (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41dcd1b4305b02282ef780aaa36e3e81f5d1bf40202ade6025d6fff9e6a255d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZES51943981.
Khatem Soliman (Original TV Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8b9288d9c6abbbf505cba06941bb55aa10a349f6840da356437ed05d80b43f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:31:28Z), 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/QZFYW1992772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb39e1d48f4fc61ba5968ef532f5352a6f6547d7295afad22ff05196e5fbe67. 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/QZFYW1992775.
Ms. Mammy (Original Motion Picture Soundtrack)
El Arraf (Original TV Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9322732bdb14ebe2c43c376cef91d7e2f306385e07e1c552f9de9a99a90b08e. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZNWQ2161646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73da6745773814e34930a782bbdbecbad312105fb907cf7e2a577e947c8ee4a. 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/QZNWQ2161650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dab84e184918c05d9a5d17c7441852b557e4a51bb4fd651c04b440fb4b87ee5. 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/QZNWQ2161652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01044fa177f5807e24311928ff1d9d8bc4bffee13df2236d19e1a3172f193d3d. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZNWQ2161661.
Negm Kebir (Original Motion Picture Soundtrack)
Saheb El Saada (Original TV Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7570a7119654fff87fe78f60c9367839d3792b1123b228d67a95c1d6579db40f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZFZ42232082.
Tofahet Adam (Original TV Series Soundtrack)
Cairo Time (Original Motion Picture Soundtrack)
Captain Masr (Original Motion Picture Soundtrack)
Password (Original TV Series Soundtrack)
The Hotel (Original Motion Picture Soundtrack)
Hidden Worlds (Original TV Series Soundtrack)
Valentino (Original TV Series Soundtrack)
Nagib Zahi Zarkash (Original TV Series Soundtrack)
El Tawoos (Original TV Series Soundtrack)
Arosty (Original Motion Picture Soundtrack)
Into The Dark (Original TV Series Soundtrack)
Rageen Ya Hawa (Original TV Series Soundtrack)
El Bab El Akhdar (Original Motion Picture Soundtrack)
Awlad Abed (Original TV Series Soundtrack)
Gaafar El Omda (Original TV Series Soundtrack)
El Kateeba 101 (Original TV Series Soundtrack)
Beit El Rouby (Original Motion Picture Soundtrack)
Seeb Wana Aseeb (Original TV Series Soundtrack)
Marie El Primo (Original Motion Picture Soundtrack)
Agent Zero (Original Motion Picture Soundtrack)
55 Moshkelet Hob (Original TV Series Soundtrack)
Abo Nassab (Original Motion Picture Soundtrack)
Meem Empire (Original TV Series Soundtrack)
The Shanabs (Original Motion Picture Soundtrack)
The White Dress (Original Motion Picture Soundtrack)
Confusion (Original Motion Picture Soundtrack)
Feeha Eh Yaani (Original Motion Picture Soundtrack)