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 0xcb72702dd0f83c755c30ae4bed89f5a5b64f554d43f8aee8d895a77a42656daf. 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/00bc6651-3248-468d-9f79-7e2f472be6f6.json and https://artists.proofprofile.net/proofs/artist/00bc6651-3248-468d-9f79-7e2f472be6f6.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 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 0xe73f14cade7dbe33fc2fb7cee9cfaa49a9dac0d7f410eb5fb0fa2ca4643e8e23. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZMEP2272713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd15393687bc3d62448e573433446e29a55c3d521ee1eaf01101804bba401d1. 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/EGA262004916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86dcf444cfab04b0ce4e11b02792e192808bf4dbf6522c307e61476a440fcefa. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FR10S2442595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb43975aea697c030f140f6be891e4f66ee04f72d06315ab7cd8cc651ff33ae. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/EGA262200707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1734009ef20d204ff2d034ea9d60d32a4af0bb89dbbd5f5f9b19a7bb155ae074. 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/EGA262202188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03488ebefaab169141429449a25a2be4fa40e55ad5670ea8025c2af0c2432656. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DGA0L2344638.
Ça y'est Kebda Nejraha Ljaiha Tsmah Fi Haqha (Live Solazur)
gaberni style (stopani mel kabariyat) [Live Saint Germain]
gaberni style (stopani mel kabariyat) - Live Saint Germain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fc8add5295e5e035d6f01558b2e637912e7ddb800f394fe252e05acdab2845. 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/DGA0H2335505.
Gravé 3achkah fi galbi (Lkit Wahed Fidèle)
Manhawel Ma Rangee Li Bgha Yrouh Wela yji
Alabali Rani Fi Khatrek Ghi Habess Tbay3ek
Ydalou Yahadrou Fiya Ydalou Y3assou Fina
Nta Ta3ref w Ana Na3raf Wahed Fina Yesta3raf
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c4dc3391176a96f7782ac1d2d3f729e77260d34815e6cc557dad94799cfd6d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR96X2472205.
La Ntaya Maryoul Ana Maaroula W Bayna (Cheb Nassim & Chokri Hadjadj)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a6adea8ab10341e64941879578f740d45bca711e5f661f66bb478b286f1716. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DZA102400618.
Baghi Naskar Sakra M3a Sahbi (3ach9ak Mon Traitement)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239ec1d1d529232845db4df5c9e3b1778b53cf7a15be3791af94de3a45bc376d. 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/SE5XG2444176.
Ana Ngouleh Wessa3eni Houwa Jayeni (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15c14b685025d1e119ee951f62856e79bf20734f23327c4e1ee28c58097c212. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/AEA142403734.
3Lah Met3ach9ine Toudekhlo Binathoume (Live)
Nta Soug W Ana Hdak Fel R4 (Version Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85367e64190621f62e78913a5691f42d8a78013e233b97dde10ad3a64e89b37c. 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/AEA142404560.
Min Ychouf Fia Yafachlou Guwaymi (Version Live)
Madem L3assimi Fi Ktafi Jamais Nandem (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dae5d21a73064cd82f0b9dba54045e6a7564314c7092a2215bea839d5b33eb0. 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/FRX282568010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc3e88459d74d846ec599ffef3db9249e0040737dc5830bd4b29eae593a5bb6. 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/QMBZ92532619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b27282256e8681261e7fa9569d00ce98caf71423a65713290816be385d46f4. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/DGA062517849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638c8bc3a597f5f0b3e6bfc7dde1a0ce25cd4b90850dbc7df20c28e3ff733a5f. 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/DGA072510226.