GQ (short for Gentlemen's Quarterly and previously known as Apparel Arts) is an international monthly men's fashion magazine based in New York City and founded in 1931. The publication focuses on fash
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 0xca824e8494eca3b3fbed8e80f1f58df70e18ab3ca9f4613971069f2f0f118938. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2986c98a-6930-4b67-8cb0-70bff7e8e923.json and https://artists.proofprofile.net/proofs/artist/2986c98a-6930-4b67-8cb0-70bff7e8e923.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).