Imre Kovács (26 November 1921 – 9 March 1996) was a Hungarian footballer who played as a midfielder for Hungary in the 1954 FIFA World Cup.1954 FIFA World Cup Switzerland He also played for MTK Budap
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 0x6c661e92841d3d9b80b72e680d0978e0a49910f89fd0c61d30317f4f0c85ff25. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9617cf57-9bf0-4649-9d86-b0e90d67ff51.json and https://artists.proofprofile.net/proofs/artist/9617cf57-9bf0-4649-9d86-b0e90d67ff51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mozart: Piano Quintet In E Flat Major / Beethoven: Piano Quintet In E Flat Major