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 0x210babdd4ad8323e1d89215437f35af3d37ae8027295e09d36ef4380d51e0878. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e11f6e4-1e4f-4b60-8c5d-602aba2899ab.json and https://artists.proofprofile.net/proofs/artist/5e11f6e4-1e4f-4b60-8c5d-602aba2899ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kalam Mian Muhammad Baksh Saif ul Malook
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 0x460011e173ef53227dccd51c9b562be346aea163a0e1079e44bde06d7ecdfb08. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:44:46Z), 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/UKJ8H2005578.
Kalam Mian Muhammad Baksh Saif ul Malook & Peera Ho
Saif ul Malook Part 3 , Kalam Mian Muhammad Baksh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4870a4db9cf13ee025149563c96431d5bc10209f24d8c8231f70bba0b64a71. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/UKJ8H2101503.
Sufiana Kalam , Kalam Mian Muhammad Baksh - Saif ul malook Part 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397bbad4ed2089b1d876b936656f36d0475d26728dcf80fb5634f60cace3a2ae. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/UKJ8H2209095.
Kalam Mian Muhammad Baksh - Zatan Da Tu Man Karin Na - Part 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb541da54022a02c257bee8d20a17eb71d5f713fb052ea39da3a953d8a3884dc. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:58:51Z), 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/UKJ8H2209137.
Milad Mashup 2024 - Muhammad Mustafa ﷺ Tashreef Le Aaye - Sultan Ateeq Rehman & Usman Ghani
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01e40d9aa40c68472a482b4a791d2fa1faffc74989dc3eecd844526adc8b7dd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKJ8H2405799.