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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08eec4f507ec4cd9198b0c9eab49879adb859d34d511a48dc9fbc7de36b9fc50. 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/2f9acd0a-c5ca-4bed-943b-a41df527448f.json and https://artists.proofprofile.net/proofs/artist/2f9acd0a-c5ca-4bed-943b-a41df527448f.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f604d73ec4112c62ca757ec576cf745da0c85db027c469906b811b92dfed5c4. 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/QZK6N2475828.
يعرفنا القاصي والداني (طب أسنان الأزهر بنات)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64db738e86a05e4cb7f1e3878157f2b18327faf36b2ace58f3be7dfa4933e4c7. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6N2477660.
إلى مثل ذا قد قطعنا الدروب (صيدلة أزهر أسيوط 2023)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4606206615914a7f5781f9f209fb68967a32a169833f9f318daa103c85ef1481. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:06:24Z), 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/QZK6N2482220.
سلامٌ عليكم | Salam Alaykom (Monem Salah Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326a361bee7663c6efbea1d4356330506565b5c160c69856030e607a8e787fa5. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2490770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd284b3fb6faf01dbcc729584a280a3768b0ed5ecdcb2665190771cbc2b542b38. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2408944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c774730b5eedf355ba8a17c73af1112a4d606b436cff073e725e9a3a7f21a4d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2494150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb99d606d10baaa8446f1daa9a1975a9b836743932b7cac064f18f69405d078f. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:33:35Z), 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/EGA252514721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4d03bd53d2f94ff348023b5fd92c4a6b3b1234ec7a89456f28ad3dcdd1ee5f. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFF2415079.
يـا سـكن النفس ومأمنها ( بشراكي اليوم أيا عمري ) بدون ايقاع
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50dc7e54dc1a72c2b9e4c9f4bd8bf4ae67c48f15718d3e3895b199ff1669613. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:47:02Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/EGA252508532.
يـا سـكن النفس ومأمنها ( بشراكي اليوم أيا عمري ) النسخة الأصلية