Jana Burčeska (, ; born 6 July 1993) is a Macedonian singer and TV presenter. She represented Macedonia in the Eurovision Song Contest 2017 in Ukraine, with the song "Dance Alone". Burčeska first came
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 0x7dd250af39e60a6b39a106d9c66e2d5310e4d13c61b746b9a5af7e397d9c6dd3. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/239156b4-8ce4-48d0-8fdf-6c7665c34060.json and https://artists.proofprofile.net/proofs/artist/239156b4-8ce4-48d0-8fdf-6c7665c34060.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).