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 0xbc7eab7ef99306eb75429bb1288df42702c35d5133522d5c0fe52c1dbaf98c92. 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/81f437d0-f59d-41cf-85fc-28c2c2e9230d.json and https://artists.proofprofile.net/proofs/artist/81f437d0-f59d-41cf-85fc-28c2c2e9230d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x125c0c2e9dad75af154081341a4ede2ee8e2b6ef68df2f3bfc8ac6e9ec2a94fe. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82282560 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec44c160531ab46062504ec74b1d2b565362fafa28aef9351827bee1db6fb64. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/FR6V82282530 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07cbfb9c822a87ef5f180eec6ffc70105a91e66c4fb6a3f2cc9fd190d4a3750. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/FR6V82282534 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07cbfb9c822a87ef5f180eec6ffc70105a91e66c4fb6a3f2cc9fd190d4a3750. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82282534 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab83702bc099b9905ac8dd122bbe398f3a310df23f8ff723f0f055920778718e. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/FR6V82282536 — a six-check JSON result.
Sourates Al Fath , Al Hujurat, Qaf (Quran - Coran - Islam)
Sourate Al Fatiha (Quran - Coran - Islam)
Souratse Al Anfal, Yusuf (Quran - Coran - Islam)
Sourates Ibrahim, Al Isra, Maryam (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c01cd5d330ff7793cee9e41bb9de0162b224687e42d4d68a90670337512c350. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82282583 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd495fe87e2496b0e80e8b5cb760690cbf13a1130eeb92d5eb6078d782a5abcfd. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR6V82282584 — a six-check JSON result.
Sourates As Saffat, Al Ahqaf, Muhammad (Quran - Coran - Islam)
Sourates Al Anbiya, Al Muminune, Ya Sin (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a5dd60b5124f9f18215e56220061d9139634afeb46d606f8d86572d9bc3c4d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR6V82282520 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f317e4011d9ed0ddcb15e180502f37b21637951c774ef43b1ccd51909aa28a1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82282526 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba41cd9b9d56b573722108db016fd90fff9379cd971170c5d08038d17a8c588b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/FR6V82282529 — a six-check JSON result.
Sourate Al Imran (Quran - Coran - Islam)
Sourates Al Masad, Al Ikhlass, Al Falaq (Quran - Coran - Islam)
Sourates Al Balad, Ach Chams, Al Layl (Quran - Coran - Islam)
Sourates Al Aala, Al Gashiyah, Al Fajr (Quran - Coran - Islam)
Sourates Ad Duha, At Tin, Az Zalzalah (Quran - Coran - Islam)
Sourate Az Zumar (Quran - Coran - Islam)
Sourate Al Muminune (Quran - Coran - Islam)
Sourates At Takwir, At Takatur, Qoraich (Quran - Coran - Islam)
Sourates An Naziate, Al Qariah, Al Asr (Quran - Coran - Islam)
Sourates An Naba, Abasa, Al Mutaffifine (Quran - Coran - Islam)
Sourates Al Qadr, Al Humazah, An Nasr (Quran - Coran - Islam)
Sourates Al Mursalate, Al Fil, An Nas (Quran - Coran - Islam)
Sourates Al Maun, Al Kawtar, Al Kafirune (Quran - Coran - Islam)
Sourates Al Inchiqaq, Al Buruj, At Tariq (Quran - Coran - Islam)
Sourates Al Alaq, Al Bayyinah, Al Adiyate (Quran - Coran - Islam)
Sourates Al Qamar, Arrahmane, Al Waqia (Quran - Coran - Islam)
Sourate Al Infitar (Quran - Coran - Islam)
Sourates At Taghabune, At Talaq, At Tahrim (Quran - Coran - Islam)
Sourates Athariyat, At Tur, An Najm (Quran - Coran - Islam)
Sourates Al Mulk, Al Qalam, Al Haqqah (Quran - Coran - Islam)
Sourates Al Mujadalah, Al Hashr, Al Mumtahanah (Quran - Coran - Islam)
Sourates As Saff, Al Jumua, Al Munafiqun (Quran - Coran - Islam)
Sourates Al Maarij, Nuh, Al Jinn (Quran - Coran - Islam)
Sourates Al Inssane, Al Mursalate (Quran - Coran - Islam)
Sourates Al Muzzamil, Al Muddathir, Al Qiyamah (Quran - Coran - Islam)
Sourate Al Anbiya (Quran - Coran - Islam)
Sourate Al Anfal (Quran - Coran - Islam)
Sourate Al Aaraf (Quran - Coran - Islam)
Quranic Recitation, Vol. 2 (Quran - Coran - Islam)
Part of Surat Al Anam (Quran - Coran - Islam)
Quranic Recitation, Vol. 7 (Quran - Coran - Islam)
Quranic Recitation, Vol. 6 (Quran - Coran - Islam)
Quranic Recitation, Vol. 5 (Quran - Coran - Islam)
Quranic Recitation, Vol. 4 (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfcbcbbb6e999c6b0332fbf12ad0a8c7f7f0fb5d96ce756a49c8edac6e58ee2. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V82354118 — a six-check JSON result.
Quranic Recitation, Vol. 3 (Quran - Coran - Islam)
Quranic Recitation, Vol. 1 (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b2f53f9a8b9b015016a8d22d52f836e57546c7a9bfbe930bfb16dff140bfd0. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/FR6V82354155 — a six-check JSON result.
Part of Surat Al Baqara (Quran - Coran - Islam)