Elviria is an ruralisation on the Costa del Sol, 6 km (4 mi) from the old town of Marbella, Andalucia. The nearest airport is located in Málaga at a 45 km (27 mi) distance and the nearest train statio
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 0x2a700bfadd6aa2a0d622ffdc4cf22799728a958dc63d486406eb79f15d59aeaf. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3a5c295-d0ce-4449-9361-c7709ade9784.json and https://artists.proofprofile.net/proofs/artist/f3a5c295-d0ce-4449-9361-c7709ade9784.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).