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 0x6c86f6b66d38cc6618f6673e6b3882782ed2cd014e6e822694c1bd0aa5bfd15d. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/939f054f-006b-44da-b66e-471fff72bc3d.json and https://artists.proofprofile.net/proofs/artist/939f054f-006b-44da-b66e-471fff72bc3d.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 0x7fa263248f08ad5faddee00425b5d4a6e71d3acb5a6266d45d0351f0ab325fa9. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/QZMEM2090398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1befaaf6476094ca01f914db24185ee4c74095d744cdd6e0a0512195d4f73a21. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:45:32Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAX2263023.
Mustafa Mustafa & Ya Nabi Salam Alayka (Mashup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a58ad6b5a372f5adf3635ee11b03cd11cbe844fcb7b44154282d4995041a91. 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/QZDA52324950.
Ya Muhammad Mustafa Nabi - শাফায়াতের কান্ডারী
Rasool Tomay Valobashi (রাসুল তোমায় ভালবাসি) - Bangla Hit Gojol
নূর নবী এসেছে - Noor Wala Aaya Hai - Milad Un Nabi Nasheed 2023
বিজ্ঞানী গো বিজ্ঞানী আমগো নবিজী (Biggani Go Biggani)
দিন রাত কাঁদি শুধু - Din Rat Kadi Shudhu