Amar Ezzahi (1 January 1941 – 30 November 2016) was an Algerian singer and mandole player. He was the figurehead of Chaabi, the traditional music of Algiers. Early life Amar Ezzahi was born as Amar A
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 0x99a0496e068b92fd4df038a204e6171bd5b0ef7eff78d09f7e5871c7c39a3108. 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/48172374-0f79-4884-bfc7-c292af5e6094.json and https://artists.proofprofile.net/proofs/artist/48172374-0f79-4884-bfc7-c292af5e6094.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Koul Ma Yaatili Mahboubi / Zahw El Khater
اسمع نوصيك يا انسان \ عليك بالهنا و الضمان
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 0xfc65d3810dba7ac050caa78a8eb661c6e68813d9facdfc8aa351da95309639d9. 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/FRX872378790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55dc2df939cdd88054c665ed3a1de5e890e058db55ddb719796af36b387505ba. 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/FR6V80391774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d319f41db09e2a5fb8d857737f563988ede42aeab321b2ea4bb5ed104bede42. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR6V80391775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03847d8ddccf75fda4f50d7a47af859ff86dbe22f59767c75148e8e8c6dbe56d. 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/FR6V81661363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850d0dc9b807880347be465769aac3e927d65643e9b969cd98e191a7e3105211. 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/FR6V81661364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bd44968f869625344e67932d717066a8fd45798df545bb8dfa02e2ef34a4d1. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:23:55Z), 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/FR6V81661366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c88660f1b49058f07bbfcf0e90e5ff80cd39032696a920c1837950b24d70af6. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:39:50Z), 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/FR6V81661368.
Ya welfi tadj el bahyin (Chaâbi algérois)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4913d68deef29d48eff125a74c12514ef5243723c2cf53af7b442b20e578f39. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:09:12Z), 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/FR6V81693039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04c1d621499456382dcd2587b6385007157458171bd059e1d04173d15f0374b. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/FR6V81693044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ce05b642f77d521572246f4f98c5924bdaa2734d317f9ae269309f2b2aa6d4. 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/FR6V81693225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e368a8494a6852700ab7932d9359816a89bb369e9b2340ae8f66e7b2e24d43c. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:05:01Z), 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/QM6P41417854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bd0d4a58554f4bed9cd141df7efdfbd6ff82c4e69d63bcad2de3c03e15f36e. 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/QM6P41417855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf19d8615dab2f2b5458245a963122ab219b8fffa99735249f46f7c70f22da4d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM6P41416464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108ae2eedb1ef4012d306dc3bd8d8732ec6856146d5db11ae94c59145c103e44. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:45:47Z), 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/QM6P41416385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575a3f3043836a67b5a30ccb8dfd75506b24cc41407b689a7d7431766869b26e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QM6P41416389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457578bfbd668f7e7949074fe43f7441d8735935c474ab296818485bd2fc283b. 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/QM6P41421886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419f10f0795661196dba28bf19be0a0a1fe49374ac4430282897fff32a93fdbe. 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/QM6P41576488.
Ya maryuma / Ya mohamed ay sidi / Nesraf tlaa enhar / Nesraf houb enassim / Salet ala Mohamed - Enchainer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919dc8f610783a570a2a452b9678919fc6d4b321be879daa6f599bb69433607b. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QM6P41582262.
Salou ya aaibad / Ala sidna mohamed / M'khilas - Enchainer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd194fac49b0f33c727be2845f89a4f3fae503465746c64bd614b0d3e5be3438e. 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/QM6N21906331.