Hugo Boss AG (stylized in all caps) is a German designer fashion company headquartered in Metzingen, Baden-Württemberg, Germany. The company sells clothing, accessories, footwear, and leather goods. H
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 0x2ee4c9f5c3b99132a384d3170c3c4bbf34f5c79f299aa6f8d275cc38b6843251. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0372701-7c80-4cdc-ad81-b99e6e4b8eaf.json and https://artists.proofprofile.net/proofs/artist/e0372701-7c80-4cdc-ad81-b99e6e4b8eaf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).