Hera Hilmarsdóttir (born 27 December 1988), known professionally as Hera Hilmar, is an Icelandic actress. Starting her career as a child actor, she has been active in the film industry since 1995. Pe
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 0x54afa7b86ba3007d82e28d3908b43d4632d07f3f9b3bfb6ff2aafdc3622a4733. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1231e437-9082-48df-9369-bfe69ddf6bec.json and https://artists.proofprofile.net/proofs/artist/1231e437-9082-48df-9369-bfe69ddf6bec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).