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 0x09545adbdb19862d9617b2a6030f99ac081b91b7b5bde233256d978936bf84ed. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2aa4f04-f44a-49df-b46b-91a1d2d33528.json and https://artists.proofprofile.net/proofs/artist/f2aa4f04-f44a-49df-b46b-91a1d2d33528.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ريمكس مهرجان كيسزا - هايواى(او اه) [Remix]
مهرجان بنت كدا (سحبت انا كدا ع الرابع) يوسف المصرى 2022
مهرجان " الطفاية دى " الصعيدي أيوب القاضي توزيع بوسف المصرى 2021
مهرجان لمينا العيلتين (انتى عيونك ساحرانى) | يوسف المصرى والزعيم
المداح اسطورة العودة لاقيناك حابس (ترنيمة الجن)
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 0x73552d659cab671304578704536fdf9f593156b58f6212e73bced8c595a16bdc. 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/QZHN92429156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe1e29a2a9c1124de8b3b0fff825b2820d1cbed8a9e6f0b0d20c12dc1d1e4cb. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QZMEQ2446493.
المداح اسطورة العهد بالك مندار لاقيناك حابس (ترنيمة الجن الجديدة)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a84fde3b153fcf08c6fe37377e733eaa2daa55f83f7aafdbfddc87e5c8cac8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZHNA2538154.