Ali Fethi Ben Mohamed Ben Brahim Riahi (Arabic:علي الرياحي), (March 30, 1912 Tunis – March 17, 1970), was a Tunisian singer and composer. He is the grandson of Sidi Brahim Riahi . In 1938, Othman Ka
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 0xf143ebff593a2e2757745f21613aeca1aac24a6a90a8512a957e98d8bb743cfa. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f387dbaa-285e-4d25-a3f5-c6a99b54e1c7.json and https://artists.proofprofile.net/proofs/artist/f387dbaa-285e-4d25-a3f5-c6a99b54e1c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Zina Ya Bent-El-Henchir / Cherref Ya Fennane (Stereo Version)
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 0x60c8f71fb7dfbd754207afce7208a31a077b576bccb1e2e37227edb257a8cf3c. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/TNA010002277.
Ali Riahi, The Tunisian Nightingale Vol. 3 / History of Arabic Song
Ali Riahi, The Tunisian Nightingale Vol. 1 / History of Arabic Song
Ali Riahi, The Tunisian Nightingale Vol. 2 / History of Arabic Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31819737d076fc5d7527ddda31a2c5c50db329d410aeadcb6af9bf9ef6ba4214. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/VGA011014051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9262f7bf18eddb0e452f4b7ab1f8111a83b35aaa20c99efb42b6c7e39edb1ea0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR6V81195033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7cd4fd6423d9842fa8725861cd5c1105181bf64533384d1983b839baa0fc43. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/FR6V81729394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a9b22969fa3178619bd0777ced59e5892240b7c245476dd232d7303f4f3d1b. 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/FR6V81729379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74f8b75b0a9720687132f6b0d0bc5c3118b5e5acc3a1b8cbd196f4ac792d1ab. 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/FR6V82578655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685111cad2fa29fcbe7061bb3011fda2e6e753e24adb8a7bd433a701d260dc22. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR6V82578657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc575cafaf22543586bc4329e38ed662bd2a5b7270b205687c464deef37f9529b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FXR752402666.