Jonathan Richter (born 16 January 1985) is a Danish disabled professional football midfielder, who played for the Danish Superliga side FC Nordsjælland. He is the son of a Gambian father and a Danish
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3416416fe8bbcf4bf5d84c652d86049a7d6e99ddc5349cde8a32f474729f91. 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/85957bc9-2741-4ba8-9d6e-14086709f307.json and https://artists.proofprofile.net/proofs/artist/85957bc9-2741-4ba8-9d6e-14086709f307.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
20 Classical Guitar Etudes for Beginner and Intermediate Students