Johanna Sofia Elisabeth Persson (born 25 December 1978) is a former Swedish badminton player. Career Persson started her junior career in Täby Badmintonförening (now Göteborgs BK), and won her firs
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 0xb8c216e4fb6871c5d370a369a067a47875b4ff168cfb884777ab7b22ce69a51b. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6c4c292-aeb9-44ab-bbae-2d252b0791ef.json and https://artists.proofprofile.net/proofs/artist/e6c4c292-aeb9-44ab-bbae-2d252b0791ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).