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 0x5e816c249e03d75e4fa075adf5592eabd2ca96b6bc38b9d87e88a0198ccccf1b. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80de3bec-271a-47c1-a13f-626041f2058d.json and https://artists.proofprofile.net/proofs/artist/80de3bec-271a-47c1-a13f-626041f2058d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
أخر يوم في السنه - زياد / Akher Youm FilSna - Ziad
مهرجان صاحب عمري - احمد بركه - إنتاج محمد الطحاوي
مهرجان نسيت شكلك - احمد بركه - إنتاج - محمد الطحاوي
مبهبش الموت - بركه - عفروتو - إنتاج الطحاوي
فريد العبد - لحن حزين \ Fared Elaabd - Lahn Hazen
غيابك صعب - احمد بركه - إنتاج الطحاوي / Gheabk Sa3b - Baraka - Tahawy
ياشغلاهم - اسامه العريني - انتاج الطحاوي / Yashghlahoum - Ossama AL-Aareeni
الليله الليله ريمكس - حماده هلال - درامز
هنساك - رامي جمال - مسلم / Hansak - Ramy Gamal - Muslim
يازهر يامنحوس - رحمه محسن - النسخه الاصليه
ليه هتسيبني - فريد / Leh Hatsebni - Farid