Oliver Klaus (born 4 May 1990) is a Swiss former footballer who played as goalkeeper from the late 2000s up until the 2020s. He was Swiss youth international footballer. Since October 2022 he is the s
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 0xbc4b738f0d3fc6fd6a01e8012707b7f6c2087ea7d90cec651bc16a9167296df1. 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/903c0b28-e8da-400d-86d6-8b1486f0af37.json and https://artists.proofprofile.net/proofs/artist/903c0b28-e8da-400d-86d6-8b1486f0af37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).