Danijela Martinović (born 15 July 1971), also known mononymously as Danijela, is a Croatian pop singer who represented Croatia in the 1995 and 1998 Eurovision Song Contests. Biography Born in Split t
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 0xcab8318c5febd40ed2b1b8a6f45db9201f48e4253d8e4d3c2a8212a3b1d714f5. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/227c2f45-1f7a-440c-8afb-e63cee211de6.json and https://artists.proofprofile.net/proofs/artist/227c2f45-1f7a-440c-8afb-e63cee211de6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).