Stefan Huber (born 14 June 1966) is a Swiss former professional footballer who played as a goalkeeper during the 1980s, 1990s and early 2000s. Club career Huber played his youth football by local clu
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 0x93692bc04b0826fb4f9a7cea0c7437872e235cdafea61891071116b44a13657d. Chain 2 (Bitcoin): anchored in block 953976 (2026-06-16T16:55:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b721e7d-bc23-494a-bdfa-6e5dab808256.json and https://artists.proofprofile.net/proofs/artist/2b721e7d-bc23-494a-bdfa-6e5dab808256.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).