La Garganta is a municipality located in the province of Cáceres, Extremadura, Spain. According to the 2006 census (INE), the municipality has a population of 530 inhabitants. See also List of munic
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 0xdb9ca72d9d7197d05bfc9b3aa91512be1404304662b544672c724894aa3c96d9. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0ee32a8-23f1-42b1-bfc8-50057664a9a8.json and https://artists.proofprofile.net/proofs/artist/a0ee32a8-23f1-42b1-bfc8-50057664a9a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).