Kamel Messaoudi (), (30 January 1961; Bouzaréah, Algeria – 10 December 1998; Algiers) was an Algerian Chaabi music performer, highly regarded as one of the greatest musicians in Algerian history. Bio
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 0x9f48b565676c9967a0da6e746e6547148109940776b513d1829f781ca3e8c561. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/076ae3d2-6aff-4f42-bb85-6f062f0a26f4.json and https://artists.proofprofile.net/proofs/artist/076ae3d2-6aff-4f42-bb85-6f062f0a26f4.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 0x8776e7c8e3d5679d110f16ede87c6226a1950e0d73afec074f591461427e2a47. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DGA0M2323611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe723dce0959ec49c7669d48c6270b9f18dd6c5255eac66555678ccc7e4da2911. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DGA052326009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a5628321b63fb93499c2616f6860202e4ad5c58807499de412933fb296fb6e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:37:52Z), 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/DGA052326012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200bc13fdb45d6b3fa43a7d5ee8ddd417fc847d0a024893b414146428f48b469. 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/FRIDO2311234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fc22b8c813eba30f815a46f580e36918b0c75b4f6c48596f1dcd9366809b8f. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/DGA082385550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948d94b47be742cbcf607877ab5e25e7e260b992e088c5e953bf7a5bc2624af2. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FR43D1600266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf3a7a6d80f03152a535d5145d4fb0314514c68e29f13f0a95a389ad86dba00. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:29:45Z), 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/FR43D1600268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293383e327ce78327de4c62ead227093a7495f81ed405026a9bf1bba618f4926. 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/FR43D1600272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f00fd32481c0c9fa6172a8bf8d5050e9eac87e223537d5e66a558b004f649c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:35:25Z), 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/QM6N21489928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef6a8ad5e5e54aeee1c8269d412eccd4343120478683fd23929eb5fc360d57f. 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/QM6N21489929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cef98c625199855578820e4c1acc6a3398e1eaca3d3922268941e64b8ef50a9. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QM6N21489930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f8ba3d1682b16a9490a01f328716e20349e2790141c0319733bb66a5171bf8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM6N21489932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc0da44b89e6c6e0158864a77e72fe6a02557b27a44ab12fec3e7be69c24b45. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMFMG1572587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3896b091e034e5def4bfb3dac90c62a46ce323cbb6bd017e1069bdd1486c25. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QM6MZ1991724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428a03d8e6862fa107966e8396e00028f17df0c4791b344eb8e720eaa07660c6. 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/QM6MZ1991725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2234d75e7a5dcb7b01becb313d8bc178852222f1ef32d4ede03c5b6fd49f8e. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QM6MZ1991727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5597f7789ca2ad11438ede0a8e456b0dca754cc0fbfd70f6e66013a5719fd4b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM6MZ1991728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f8bf9ccbbbad7b78904296308584d21148911eb13f8038eea463e580e96740. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QM6MZ1990210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f39b44bb97c4a79ccf7232035f35667b3d0bc24e3a9911070e8f71420047fd. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM6MZ1990213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e59a9d09aa9090e41d721943392ff96dcca0f46bdbd998ef72839b9c43f682. 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/QM6MZ1990214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6ea7bb078d53426cb4d9afe2229823b6fbc57336857f1ff7d09e5edd7b411e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QM6MZ1990216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68a72d23afdb8857618b08a68948667aa616ab978ab4d9da978184b910f0f4c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR10S2224731.