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 0x6d3922fa81ea09fa0b18368280f48af15915347af712d3a07b0e3002173fa245. 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/67c3ae9c-d25f-489f-906a-d5cb8f3674d0.json and https://artists.proofprofile.net/proofs/artist/67c3ae9c-d25f-489f-906a-d5cb8f3674d0.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 0x8bd8ef7463f9e1a6c19cb06252cb0dc3c3d6c0a3e0bab0656aa5b6c4851b0458. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/EGA020501287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbb8331c862f62c3b6f8b5fc34e4aa4ed03ed60e121d9b30eae25bce4deef5f. 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/EGA020501277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbae438ad379a1fa43b9501a0b092dc084212390a28d1420164eeef4ba3ead0b. 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/EGA020500718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88302c7e3d86a3fc94f0469d401e15add504527250803af81ffa2e4e67206d7. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:19:47Z), 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/EGA020500719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f23247922dc731dfc65d7895fa96bc511a782391e7be393d491d3730434302. 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/EGA020500598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5a8140bacc659e96bb3fb44588cbf212c78e4b7d3dd9b433f1895a01ca14eb. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/EGA020500893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52266ba9177003d7149d7066cfb12698e3407f47caa921e745fe6e773799973. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:46:09Z), 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/EGA020500894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b026f091e6a27182f7a795a2c02f68db411c2a43723fa827570d2646ebd2a83. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/EGA020501045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4678703a193e83a250a032b3ddb03d076a3a4cb151584d9b374e0dfd86be64c2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/EGA020501047.
Sahra Maa Nagat Fi Cinema Qasr El Nil Bel Qahera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a360a009f8035ae0bf80aed38305f9dc5bd25b6ecd07ad2400b7f16585259b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/AEA147001343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928faa98755c00695ec6fd716605fe56e0b3e719160916faba5a788657874766. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:00:19Z), 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/AEA147001354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261fb4fe70338230b8ccbf581826c47db328fe56bca13cdf7651eeb1f11448ae. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/EGA020500553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9620ae779bd8e8ae136d6a3536bfe7fe21a8b6274aedf4fa0d76cbc48cb644a1. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:00:36Z), 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/EGA020500556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329b7b9bfadb6c9f9eb72219bf825b311d699dc59ef8e24461f8292203879c30. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/EGA020500563.
Nagat Toghny Mn Ahla Ma Ghana Mohammed Abdel Wahab
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc19fb472d528e97e4cc9a0b363bc9f920ef167663122462ee0a0ae05a72a330. 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/EGA010506205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5942b2b2b743f1c240afa889de2e7d2548c94a43b775499f3a69f0ff28ddb2d6. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/EGA010506207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630aca0d4d0a7e7c737f9b27a6c90a5b032c5e77b66d5d8b1a169110432030d6. 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/EGA019002128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5f9ea4c465d5b1c5aee7cc5b665552fed074b91d6962435ba0e2c10e466c8f. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:19:37Z), 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/EGA010507041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47316e2366b0503c6caa87aced9987dc45444b9d2b7e80067751daa014a50f8. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:54:01Z), 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/EGA010507384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329b7b9bfadb6c9f9eb72219bf825b311d699dc59ef8e24461f8292203879c30. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/EGA020500563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4678703a193e83a250a032b3ddb03d076a3a4cb151584d9b374e0dfd86be64c2. 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/EGA020501047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a97e52a04d7102f7be06f2aeaa12b283829ea2b4b1f5f33d2e8078be6002b3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/EGA252505493.