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 0x6c618b428f2ce3e69a0788f32e17ea891a760b3133426a83659de6d109e52805. 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/40f0caf4-4d14-47c9-96c5-99e370b32fbe.json and https://artists.proofprofile.net/proofs/artist/40f0caf4-4d14-47c9-96c5-99e370b32fbe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).