Zhou Qian (; born March 11, 1989) is a wrestler from China. She won the bronze medal at the 2014 World Wrestling Championships. She also won the silver medal at the 2015 World Wrestling Championships
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 0x3e436d5482b040a607805855e4156ee3cb6e358fab3884e711fe094ff0a1d4b8. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70dfcc69-788f-4671-832b-fedc4634a1ce.json and https://artists.proofprofile.net/proofs/artist/70dfcc69-788f-4671-832b-fedc4634a1ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Carmen Fantasy and Other Violin Favourites