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 0x81e408d926a9ee8e033d65ef34e09d11a65f093ab62da3b5b9d130085831ccbf. 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/2c2bfa45-2ddb-4e3f-b810-46c30d408166.json and https://artists.proofprofile.net/proofs/artist/2c2bfa45-2ddb-4e3f-b810-46c30d408166.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 0x4e47f18956b8bd3c053b0852f22bce9c701ac35f860df9bb1016f1c52e92e88d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9M2305047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8182bba764c5b75e9f07149f6f1c1d62d7d5d50f78350171bc78a554f34a6b47. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZMZ92445023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a9a7334312e25600cb078f51e67b61bc8b4018484d0c2becbe0d9d3de6c7a6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2459307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e04c9a948347667ff17fe262e23aff2dad7cf85f1bfc2f71d5f312c0d8c3a2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZN882415426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b37d759d15a9ad6e1db42efa2cbf9411c256585b27d43ae7aeb8d054395113. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882418816.
ويلي منها من جمالها - عيونها خمر والقلب كاسا
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d206622aad7bd02aa0da1526b2b8d07ce79f133aab4544bf3973e0f079701fd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882511203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7518523cff0dc2e5cd27caae1b6e624be7512f07c11d314f9b0a15af37a65ca7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882530593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc13e4e26be8d0ebd4372f5bc8d4fcdc2a51ab462197854638c0e461a459100b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882539984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696f7fbde6b03b85002dc77ed23b25853f7f11b4615cc0e8f9a193b072fca696. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882545512.
كله يهون عشانها تقفل عيونها - دي البونبونايه دي مكسرات
خلتني احب - هيا اللي ضحكتني - بشويش وسنه سنه
مسكت ايدها وانا تحت بيتها - يابويا منها دي العين - سهرتني لليل
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893d634d5edf5d08a5f405dcffe3ca1739b56d02389a32110ee47490c965f806. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWDW2514847.
ملكه جمالها - الحديث من شفتاك يسكرني - دول كدابين
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11f32cc875775a7cd2d7331a43c9797b83c68b1d160021cf9ff4d6b12306493. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDW2524327.
خلتني اقول يابوي يابوي - عدي عليا وسجاني سجاني
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbae00cb6b197714bf98ee000a13413084803fc666ac71366bcd1482414aff8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWDW2540282.
ملكه جمال الكون - سوق العيون - ان كان فرسة فانا خيال
جيلها الليله - ياحظي ياوعدي - عادينا بصينا
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0aaf97d892461f3cbd33f48e4d7f7e3990781759a80a72276f45c7ccbf511b. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZWDW2576896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6387a9e812a6e03a8fc46f7149ddf0aaba8c3f9ab1a1bf73f0785e2f8de41eaa. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZYFZ2506582.