Janika Sillamaa (born 23 June 1975) is an Estonian singer and actress. Born into a musical family, Sillamaa was herself onstage from a very young age: in the musical theatre Colombina, founded by her
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 0x77b0752f2ab5a07f4e0c656d3f7baa271486fdf5381d38d12eef4d135e24b432. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6379eaf-b58a-49ec-8fbe-d09176682e6d.json and https://artists.proofprofile.net/proofs/artist/d6379eaf-b58a-49ec-8fbe-d09176682e6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).