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 0x71cbebb0a1be983ee75ed9828e168dbb7fdcc29f2ade1b4233aa47ae2fd9a071. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41483a93-dcef-4de1-b157-3784b48c9442.json and https://artists.proofprofile.net/proofs/artist/41483a93-dcef-4de1-b157-3784b48c9442.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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Funoon Shaabeya 3 فنون شعبية Ghayboba غيبوبة
Funoon Shaabeya 4 فنون شعبية Girga & Bardis جرجا و برديس
Funoon Shaabeya 5 شرقيات فرقة الموسيقي العربية
Funoon Shaabeya 6 SHAWAZA شعوذة فنون شعبية
Funoon Shaabeya 7 Mizmar saidi مزمار صعيدى
Funoon Shaabeya 8 Mahraganat Badaweya مهرجانات بدويه لخالد سالم
Funoon Shaabeya 9 Mahraganat Badaweya مهرجانات بدويه ل علي موسي
Funoon Shaabeya 9 موشححات و أدوار فرقة الموسيقي العربية
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 0x46a93e6b7a9ae9c53971f111deb9c444f30a1d4f306df34e090e88021b9c19a3. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/AUK2R2300747.
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