Houari Manar (; born Houari Madani, ; 18 December 1981 – 7 January 2019) was an Algerian raï singer who was popular in his home country as well as the neighbouring Maghreb and Mediterranean countries,
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 0xdd5b03c26f1235fd8b899a78614aec6e78324027d56bf5d8f99ede32d03af004. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8cb2230-c711-4cc1-a419-7eea9dac303b.json and https://artists.proofprofile.net/proofs/artist/a8cb2230-c711-4cc1-a419-7eea9dac303b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x6b58417a46fe0ea53e8f7274745182bf885c23ef900d952e4cb3ccd098d1050a. 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/FRYAS0967064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71515ba9549cb2ebc54dcdb0516ef970fb34484aae16fdda9a6ea267c61c9129. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USA370975530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17428c9b4cc1f41b754d0e7a6e6536ff757c902ba7f1740d1fe9138596f81b3a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FR6V81666307.
Sayi Wselni Le Message (Live au beau rivage 2013)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb1d6789f76e19a39a775d739a48ad5c40784f76a9f5ea498d034d450bfa9ae. 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/USHM81448374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fd7b98d674e95298b90693e3ffa44cc561a2d8b70f6db0fd2eb96815f12c3c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM81448375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae65917da045d1cdb8e98a63a2886da847b465ee4a101ebfa51367dc3b83432. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:42:52Z), 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/USHM81448376.
نسيانك ماشي ساهل (Live au beau rivage 2016)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ffdb31deee7ab0f53fafe2d3a118f19967c3269f65a3902f28b1888712c16a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:43:47Z), 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/QM6P42070993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85813126da0fb4e6c7d6d17b37ee13bd0e71670a2651b945bbefa1344a0d21d3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAEE1974201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde8b7520eb71d75d6f26d88453dd6e8a0bc96455922f20352049bdd757cfd09. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:27:44Z), 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/FR59R1794508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8e4d2f71c3d60dc5b062a353665ac5504d5d01ca887b907a5931e0a8f1359f. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/TCAGI2216627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda46ba054ed176b28c29010c043ae931f3a39685e3a5c6339e0a46102b9bb7bd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR96X1744566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b1b830a43734cd9876dabaa35c51b5db5368de704806fc5dba427931943b83. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ESA012009063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6261a38f379fcc3e41850663841fb5c66252b43df99b1836ba93e46250cc39. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAEP2077673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a10b2c95c126939f0fd59598bff92118e2ff733259077aec012b85f20576d3f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAFT2147039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe9dd1b75c0b69342e3686016bad4b69434f9dc82cb8e0875a944d31cb0b00e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAFT2146884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f654349122ae94430b951a49b494b7abbcae7d3eda0140c03a962c91073a8a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR6Q11500116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dceb3c330cc8d5aa51921a19bad18fcc69e048df1e14099ac2dc30aa06a8857. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRYAS0646750.
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