Kara Louise Tointon (born 5 August 1983) is an English actress, known for playing Dawn Swann in the BBC soap opera EastEnders. In 2010, she won the BBC competition series Strictly Come Dancing, and in
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 0x7d303e541c982aa854b5ffd0b79b86e2f3055c9f35924cbd776da9a479919cff. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/620bcf09-8389-4671-bebb-410b05ccb58b.json and https://artists.proofprofile.net/proofs/artist/620bcf09-8389-4671-bebb-410b05ccb58b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).