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 0x643f9bf757d4c7045f91caea93c0556aeb2a5ad33cc55c06b921ca0b2b920c05. 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/29aee593-f4da-4f20-a46b-4a4dbd707596.json and https://artists.proofprofile.net/proofs/artist/29aee593-f4da-4f20-a46b-4a4dbd707596.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
سورة فصلت الجزء الأول - Surah Fussilat pt.one
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 0xa98ce7203e48984bf747c7ea4cceeb3584ebd199fa57336749de35f23d8fa746. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42588036 — a six-check JSON result.
سورة فصلت الجزء الثاني - Surah Fussilat pt.two
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a66f57b463dcf0fcf3e500fc98d1d5ec3015d654db04c3c5c67e7fb0cad625. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42588037 — a six-check JSON result.
سورة فصلت الجزء الثالث - Surah Fussilat pt.three
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146a01d208cab12dd37497b40c37a75c1525a608d08c723ff2309adeb5ccec59. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QT3F42588038 — a six-check JSON result.
سورة فصلت الجزء الرابع - Surah Fussilat pt.four
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a6d84f2f58855a7c52dfb8ae66df8281a9cc29258339f5022240d41db82720. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QT3F42588039 — a six-check JSON result.
سورة فصلت الجزء الخامس - Surah Fussilat pt.five
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8da8c3ad33d8339f386d27315abf82fe14b0e049ef0a56b92825a000e55528. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/QT3F42588040 — a six-check JSON result.
سورة فصلت الجزء السادس - Surah Fussilat pt.six
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2d2fa54f4db658fa4660f5f7db6cc0b36a41667b0552a599303118d229f68c. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/QT3F42588041 — a six-check JSON result.
سورة فصلت الجزء السابع - Surah Fussilat pt.seven
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46560868fea34c3fa3dc258e7f554b52da42f91ffb8ee299a7066e37661c6296. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42588042 — a six-check JSON result.
سورة فصلت الجزء الثامن - Surah Fussilat pt.eight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4a5298c93ab0ca49c1d37ebde2b8791dbf78eb52fd5678e1f23f902682017a. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QT3F42588043 — a six-check JSON result.
سورة فصلت الجزء التاسع - Surah Fussilat pt.nine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f97ed38e7dab062e6d1ae3b41f5f2ffc46bafb70f8c5107b1dba8a9c2ca380. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42588044 — a six-check JSON result.
سورة فصلت الجزء العاشر - Surah Fussilat pt.ten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa106963a37e51454e7f24bb01cdb8c7edfcd18e7db0255d8095efc2663aca355. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42588045 — a six-check JSON result.
سورة فصلت الجزء الحادي عشر - Surah Fussilat pt.eleven
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4008dac7123514cfecd53ba146b6ab180e6a03600469f00f9028516790cc65. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42588046 — a six-check JSON result.
سورة فصلت الجزء الثاني عشر - Surah Fussilat pt.twelve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9601acbc9395480b28f78716de5b02863c216de8f4d0a805f6786441c27384f. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QT3F42588047 — a six-check JSON result.
سورة فصلت الجزء الثالث عشر - Surah Fussilat pt.thirteen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7882837bd084f5c96ea35a693186c1cb053c213ca9b9f113045970ef5c32de03. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42588048 — a six-check JSON result.
سورة فصلت الجزء الرابع عشر - Surah Fussilat pt.fourteen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bae22f9c7250108c313a4ed5eda6903f640ee1ba52ea17237543e18c6b7a75a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42588049 — a six-check JSON result.
سورة فصلت الجزء الخامس عشر - Surah Fussilat pt.fifteen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf79db629245a0d4f24163f6667534c6183005c6777460f943e9d304c738bf88. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42588050 — a six-check JSON result.