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 0xbe8316f4ad9197613fa345baaa07732b765dc94e8b364482ec9ea7cf82dd0d37. 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/c00d5f33-e907-413a-9afe-aaefe8aca4e2.json and https://artists.proofprofile.net/proofs/artist/c00d5f33-e907-413a-9afe-aaefe8aca4e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Da Zanb Nas (From Keset El Hai El Shaabey Movie)
El Amar Wasal (From Keset El Hai El Shaabey Movie)
يا ست يا ام زكي (من فيلم قصة الحي الشعبي)
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 0xa11069de63f487b69fe188adb10a4031819ed049eacd5b3a786add15797c5e5c. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/FR2X42347160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfb08f6c1ce42add8fe065d73610c8311a6c5d226d83f0ba48e86b69791b8ec. 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/QM4TW2102769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10b164aa22f5fc7eebcdb46cb346b953baacdc9d2ef025284a2932d30017316. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QM4TW2102771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06819d1bc52c771b0a1506fe44a5f644011570d967c58b5a4cabca501e26411. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QM4TW2102776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff84073c4c05f55ed3fbd004e27e57eaa6cdddb9b5b8ce44828f97fe9440bee3. 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/QM4TW2102905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cd0ccff12091d69de4b029a3e37bb50261054a19cd8c54f4bc8c7a08595f74. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QM4TW2102906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd0ffc97c3278939c3fd0aa03cffa4b90e3e64822bc03bdc736048da3882fba. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/QM4TW2102958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f95679e26d0a4e5bdc2803050c29d1c1c80ac4339a7d1e50175c9b92b23c9dd. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/USGN30600260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28456d53700363aaa36b82168397fa2dd5b791bcac53b36bd7d7e0facfb366c. 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/DGA082205807.
بحبك يا حمار (من فيلم عليا الطرب بالتلاته)
بحبك يا حمار - من فيلم عليا الطرب بالتلاته
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96737f1f409434920c1ec68bd963869f65118df720a444d0486a0272acf4522b. 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/FR2X42339312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24556e3c88de9baba1a30d316d33d81f88c49772bd8f9aeb13ceb999d4e3c7b. 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/FR6V82259472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b7c647add7f4e3e1f3e755eb1eb82cacccdda55d6e656c779ddbe1cce8eccb. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FR2X42338358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652387034138786baad6a8d3fa6e4d35557ab852fc11e183406ef5e6a96e60fb. 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/EGA010545222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5137b9d69e2d645cbc2df3602e092a1110f6641703e90ff8ec68b8a71dbae233. 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/QMDA72534865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f6658ee08821fb6b87bad321f77a2375be9b6e2629a4481cc4ca25ad46cde6. 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/DEG932402216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4036c964fd5318806a1f52f9609b64d8a34ae1233f1d42652b921bf1b55909. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUVWE2301277.