Mathias Christensen (born 10 November 2001) is a Danish footballer who plays as a midfielder for Aalesunds FK. He represents Greenland. Career Christensen hails from Helsingør and spent most of his c
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 0xce2522936a49caba35ca436df259e6ed56b6362626af3b91355ce13b22f675d5. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/831680d9-20a5-4d4c-809f-0d89e1ed513a.json and https://artists.proofprofile.net/proofs/artist/831680d9-20a5-4d4c-809f-0d89e1ed513a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).