Sanna Kurki-Suonio (born 1966) is a Finnish singer, kantele player and composer in the contemporary folk / neo-folk music genre. She is most well known for her work with the band Hedningarna, which ex
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 0xbf59c87693f6e20c4a6f2568fbde21e28b5b05481cafbda9918c00ec0c74e548. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14fe7c74-8fd6-4c3a-b11b-6a842648bdda.json and https://artists.proofprofile.net/proofs/artist/14fe7c74-8fd6-4c3a-b11b-6a842648bdda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).