Annie Ros (5 March 1926 – 14 June 2013) was a Dutch gymnast. She competed at the 1948 Summer Olympics and the 1952 Summer Olympics. References Category:1926 births Category:2013 deaths Category:Dutc
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 0x5214c4071651bc2ed0ebfe160c760cc7c73046672362c49537eb5be8cc4ce709. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af2d4f96-34ff-41e5-8900-4bf599202ca5.json and https://artists.proofprofile.net/proofs/artist/af2d4f96-34ff-41e5-8900-4bf599202ca5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).