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 0xf9bbb599bb010dec091b505576e0ee1515f314f74c53af78f511fa5f7fb75f40. 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/92dc5187-80e7-4f16-aac6-c4e77c3819c7.json and https://artists.proofprofile.net/proofs/artist/92dc5187-80e7-4f16-aac6-c4e77c3819c7.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Sourates al Fatiha et al Baqara (Quran - Coran - Récitation Coranique)
Juzz Qad Sami (Quran - Coran - Récitation Coranique - Islam)
Juzz Tabarak (Quran - Coran - Récitation Coranique - Islam)
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 0x9d6189664626e6379ceb58459b7e60fef9a9d0728a73db13280052474009e1c3. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82630838 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dcf5099a17e251bf09b27e5621289ac2210b66f860b6d2890cf7beb5843636. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82630840 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dde5b3ac5e19a4942da13636a87fe1932d10e8b58d8070f6c4e7119df48237f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82630841 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf685d6358d44a0e2a513247341c622a880984815687cb22dc85b5da0f722eab. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82632280 — a six-check JSON result.
Invocation de la nuit du destin - Ramadan 2007 (Quran)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe077ff672a9051280b3751509e31f05896e24563a8c41a5168bac8e5e1c35c88. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82642121 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c7c1a6d2ed39a1d1f2d88c1d7ec629e7e2d3136981b3cf6878f2d53fb759e3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82642122 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca0c303276c0c51896bd5a2cac2284cf2b3fd016b85d9fcc6b68374a16e3379. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82630745 — a six-check JSON result.
Invocation de clôture du Coran - Ramadan 1990 (Quran)
Sourates Naml, Al Qassas, Al Ankabut (Quran)
Sourates An Naba, Abasa, At Takwir, Al Mutaffifine, Al Gashiyah, Al Fajr, Az Zalzalah (Quran)
Sourates Al Jatiyah, Al Fath, Qaf (Quran)
Sourates Al Hashr, Al Mulk, Al Haqqah, Al Jinn, Al Qiyamah, Al Inssane (Quran)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced0f4026f703e4c90a165763529ce2ce966ffc8c840758753b623f6eb9b9900. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82630762 — a six-check JSON result.
Hizb Ama & Invocation de clôture du Coran (Quran)
Invocation de clôture du Coran Ramadan 1427 (Quran)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bfb6dd03857a7630a0318670f40d4510c0e99a9dc4099084ec0f552c4b39fb. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82629918 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefc92d25876751c2fef2f1d9647122ab0fb4b3fb401274abbec6f0d66916a9a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82629917 — a six-check JSON result.
Invocation de la nuit du destin 2013 (Quran)
Invocation de la nuit du destin - Ramadan 2009 (Quran)
Sourates Athariyat, An Najm, Arrahmane, Al Waqia, Al Hadid (Quran)
Sourates At Tur, Al Qamar, Al Mujadalah, As Saff, Al Jumua (Quran)
Sourates Al Hijr, As Sajda, Al Ahzab, Achoura (Quran)
Salat Tarawih 27 Ramadan 1426 (Quran - Coran - Islam)
Sourates Al Qariah, Al Humazah, Al Ikhlass (Quran)
Invocation de la nuit du destin 1429 / 2008 (Quran)
Sourates At Taghabune, Al Mursalate, An Naziate, Al Inshiqaq, Al Buruj (Quran)
Invocation de clôture du coran ramadan 1417 / 1997 (Quran)
Invocation de clôture du Coran, ramadan 2011 (Quran)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0384e34048c5013e8dc7fc687a1b60675dc725af97a2f873ddd1a339c81859b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82629337 — a six-check JSON result.