María López de Eguilaz Zubiria (born 12 July 1984) is a Spanish field hockey goalkeeper who competed at the 2008 and 2016 Summer Olympics. López took up field hockey aged eight, and became a goalkeep
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 0x363a07328ddd6802caeeca88cef66ba7a86e58a24881287204743ea27da165ce. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5417be39-337a-4626-97b5-acebd152b09c.json and https://artists.proofprofile.net/proofs/artist/5417be39-337a-4626-97b5-acebd152b09c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).