Jani Stefanovic (born 23 May 1979) is a Swedish multi-instrumentalist who primarily plays Swedish death metal. He started playing around the age of 13–14 years old."Jani Stefanovic" , Metal from Finla
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db5ad41d0002c62121cecd32492c0ab9065d1a8fb91901d887a17a21fde7048. Chain 2 (Bitcoin): anchored in block 954069 (2026-06-17T08:30:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a4ad020-23b0-43bd-ae52-0af9f2118610.json and https://artists.proofprofile.net/proofs/artist/7a4ad020-23b0-43bd-ae52-0af9f2118610.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).