Igor Lazić (born 16 February 1971), known by the stage name Niggor, is a Montenegrin hip-hop and electronic artist, best known as the member of hip hop duo Monteniggers. He started doing music with h
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 0x178af0a7a6c782a078458752165e82a6b436093b533059eda4ff00cd858043fc. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/67161fb9-9a73-4bae-9602-1af9a3e0ed56.json and https://artists.proofprofile.net/proofs/artist/67161fb9-9a73-4bae-9602-1af9a3e0ed56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).