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 0xa5aed7b870486040f2b8c53bcfd46dbc018a80b2ff529589f6857de9202b7fc7. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e420051-f19f-47be-9f34-05b7552015bc.json and https://artists.proofprofile.net/proofs/artist/5e420051-f19f-47be-9f34-05b7552015bc.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 0x31456ca7223f3e87bec90e139f46db40756867e845d4ef051747cc22d11e35c4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZK6P2186449 — a six-check JSON result.
موسيقى صوفية بالاشتراك مع محمد ياسين المرعشلي
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d43aaf8767d29fd5fccef8a636a1739fdf53416a390f302b7ffc52918ba4921. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZHNC2122593 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a77cdd20250a4acf8509b0735b43a342f4a714062035e38d4ee12cb9fd2c144. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZHN82166107 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad043d1622e5110c92ad0bf76873732f1bdccd3b15b17fc736fc8eb677c951e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZK6G2169901 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efe8337a889c63dd4bd5cde14b78ec99e1cbc173c01f9df1c6f4e1ab07b331b. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42277555 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127fead93fa716f19f7ba2467a2740d08bb9f0f0f9ea02eee11aa72aafa7b47a. 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/QZTAT2227878 — a six-check JSON result.
ماهر زين & مصطفى جيجلي (O Sansinki) بيانو
هالأسمر اللون - فوق النخل - لما بدى يتثنى (بيانو)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423f45da884502a6ea3b39b5d743d05cc6bc626cb286f25502a47996b1ad1fcf. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZTAW2247430 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061d8442110a9e3121f146b8df29eb14456e43dac3ab697b1f954074ec07a1cd. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62328431 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4259a7e090383e624560047ecdbc5ed9475f6c868b7c1dcd1473a4880dfc6199. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZHNC2388316 — a six-check JSON result.
Rahmatun Lil Alamen رحمة للعالمين | موسيقى
Rahmatun Lil Alamen رحمة للعالمين | بيانو
ماهر زين Thank You Allah (Music) | الحمد الله موسيقى
اهات بشرية حزينة - روحانية - فوكالز - اسلامي
Hamza Namira - Ghoroub Piano | غروب موسيقى
موسيقى طالما أشكو غرامي | Üsküdar'a gider iken Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51366244fa9e583a9351588216e160f48a685dcb7307c3683d3ba58f93fca3c5. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZRP52307439 — a six-check JSON result.
موسيقى متيم تأليف زياد سيف - موسيقى حزينة
بيانو رومانسي | اشتياق | شوق تأليف زياد سيف
موسيقى حزينة همسات الغياب تأليف زياد سيف
موسيقى حزينة - العزلة - بيانو - رومانسي تأليف زياد سيف
بيانو هادئ - حزين - موسيقى العزلة - عزف زياد سيف
موسيقى أمل الحياة | زياد سيف | Hope Of Life
Huwa AlQuran | Piano | هو القرآن | بيانو
| حجازيات | بيانو صوفي | Piano Sufi زياد سيف
قلبي في المدينة | بيانو Qalbi Fil Madina Piano
Maher Zain - Hubb Ennabi ماهر زين - حب النبي كوفر Piano