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 0x421daa33bb8b5ee7bb1a20201d5dcc98e2cae1e2cfd873e7113234a5f64092ad. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cbd7b81-b24b-44ed-8d34-a8e13c2112e6.json and https://artists.proofprofile.net/proofs/artist/9cbd7b81-b24b-44ed-8d34-a8e13c2112e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Unparalleled System of Sanna Kurki-Suonio