Jean Strauss (17 February 1912 – 18 December 1989) was a Luxembourgish sprint canoeist who competed in the late 1930s. He finished 13th in the folding K-2 10000 m event at the 1936 Summer Olympics 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 0xe84f4f4beef2159445832b409ddc64f4362f9c4d207635af95ca23c749583c39. 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/8f61ac0e-89e3-4362-be3f-44dc0280dd1b.json and https://artists.proofprofile.net/proofs/artist/8f61ac0e-89e3-4362-be3f-44dc0280dd1b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).