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 0x9a643f7bcd52bf76848c95ed9534540008ad63e184d3e0b002e4a162bb83743b. 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/33a1d1e0-97a0-4ee4-b1da-790da701eace.json and https://artists.proofprofile.net/proofs/artist/33a1d1e0-97a0-4ee4-b1da-790da701eace.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chira Sghira Aliya (Live mezghena oran 2013)
Dik Sahra Maa Omri (Live mezghena oran 2013)
Dert Koulchi Ala Khatrek (Live mezghena oran 2013)
Ki Tchoufek l 3yan Tebki Malah Galbek M Compliqué
Jabouli Dossier Raki Fiancee Feat Bachir Palolo (live)
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 0xca749822f5c96e61f30f51edbf8b6d301ca4918c5a12f6b581701e2405f9a6fd. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/AEA142113836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb2ec684effcab134d77f63eabbd5019867ae569021923a3c48d2ad42eaa23f. 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/AEA142113839.
Aachekek Machro3 Fechel FT Houari Hamaddi
Min Lghabra Kemletelha (Wahren 3aytetelha)
Kolyoum Yahadroli Fik w Ana Nzid Nebghik
Aarsi Mab9alah Walou Contra 3la Les Jaloux
Malgré Fiha Défauts Nebghiha Je M'en Fou
Gatli Rah 3ajbeni Wled Gambetta Rah Mhebelni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7ba54cda4738dd14530e63ffb57b1a2fa94f5ab00243654ba18fda604797be. 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/DGA0M2399950.
tayar wahdi fel chombra (Tobssi wel ghabra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e721ca4f0075cc0f6fc1805fb50dfe2f26d4a30321abcb4e4f928ab0c1cb71. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/DGA0H2370306.
Nta 3asni Fi Hyati W Khtek M3aya Tesnapi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055b9654ea1d1b3ffbb80fd07c772a46bd4aee59d1e191a61fd3e932857810a1. 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/QZZ662327154.
Nhar 3erssi Annulit Teba3t Trig Li Bghit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2057727b75218c4cdb1a8c685c0010ae1c3c8fb20038eb2af367673840015a. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/QZZ662374368.
Tfakri Min Konti Maghbouna Kont Nfagi 3lik
Nti Nakaret L3echra Na3fess 3lik Bel 3achra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5212dfc1a4ee91fb029754fe33b53042728507376f0f891c0f515e575670ade1. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/DZA102402664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647f1af53441297c5cbe72cf6968d1b875b2386afd1f30f0f45107357b777c54. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/QZP7F2504128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7765d223af484a53791171153c535054a60f84d3b44b2f7f61ef98604404621. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FR10S2589268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955a0cfdf51e9f21cc5ed1d38c5ca48b0c1d05c43b9cc666ee6d30511b718509. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/EGA262500763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988c0dd696bcea04e2bb93064e2a6f5ec51b5721d096e47a2ae9134914131565. 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/EGA262500888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5773d429660625f418cf7a09cd4b097e56c480ea1ddc6c7a396984015bcbeca0. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/AEA142502632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91df3f704896d7bb74fa3feeef83e88d31b36dd190c9e1d77fc938651f19b518. 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/DZA102500988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468683bb0de256b29728024ccf4e682619cdbd28a732031f8fa3290a27c22589. 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/EGA262501231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69c4c681cad35f876a0808125a2662903a82cfbfb2b724d5c1dcf626f782aa4. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/EGA262501259.
Nelbas Lacoste W Nelbas Fandi Ana Machi Bagandi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e9f4c46bde85068ba4197699457843398078075f18de9af93173463887414b. 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/FRX872575980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08860fee4b820e1c69fc33da0ba99aee446b46ef169eb1395f1a58d544205733. 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/DGA052524167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c26b3d7b989294907a1b201ee891c67646d47a306eda111ee51ce965f2c4779. 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/DZA102501759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b75fdaf2cf7a5bef7771d1d0a3d7fbe4d8f0da49112f66eb5bce39eda4bf0f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AEA142504366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a87526aa8467efdc873f298d363ac599e0562322a0e2288a79d2f288df03ea4. 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/DGA062580078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7531a33ffb75a191505a22e59228992f9eb2e75353e64f773191306fb7895bd2. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/DGA062593240.