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 0x3ac56a9fea0c564335c4a2904a68d69ddfb7ac9b1ac60f9dc0b04996306b8db1. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02319218-746e-4c7e-a305-e40c8be735a4.json and https://artists.proofprofile.net/proofs/artist/02319218-746e-4c7e-a305-e40c8be735a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ya Asal nassif zeytoun /ياعسل ناصيف زيتون (Ya Asal Nassif Zeytoun Remix)
Mohamed El Majzoub - El Hob El Hob \ محمد مجذوب الحب الحب (Edit)
Amr Diab -Nour El Ein /Afro House -عمر دياب -نور العين
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 0xfd0ede676e8fac568c654baec8c565de9fdefc0c57fd5479c02af38b8a992b97. 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/QZZ7Q2403705.
Mohamed Ramadan & Saad Lamjarred - Ensay/محمد رمضان وسعد المجرد -إنساي /Afro House
Amr Diab - Wala Ala Balo /عمرو دياب -ولا على باله/Afro House
Assala - Aktar | أصالة - اكتر(Afro House)
Ahmed Saad - Wasa3 Wasa3 | احمد سعد - وسع وسع (Afro House By ZEER)
Fairuz - Al Bostah | فيروز - البوسطة (Afro House)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc773e598eaa09e522ac433ec5bf106e46b107da39642e0e56e4ba87977f47e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFG2507825.
Amr Diab – Khatfoony | عمرو دياب - خطفوني (Afro House)