Ronda () is a municipality of Spain belonging to the province of Málaga, within the autonomous community of Andalusia. Ronda sits on the Ronda Depression, a Miocene plateau at around 600–800 metres a
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 0xee59b125d7f8c9b8812db7fdbcccb5e5e4c34bbc787ab9087aa93404a01fcee4. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fab04b2-09d1-4cd3-923a-6ed206a0e2ad.json and https://artists.proofprofile.net/proofs/artist/6fab04b2-09d1-4cd3-923a-6ed206a0e2ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).