Volubilis (; ; ) is a partly excavated Berber-Roman city in Morocco, situated near the city of Meknes, that may have been the capital of the Kingdom of Mauretania, at least from the time of King Juba
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 0xe6214d5dcaab38bcb1182bbc1fbd488a21567600b4cba90b1fbcc917b93000d7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d2c6332-1a3e-4c19-806b-ee973ffd9ef4.json and https://artists.proofprofile.net/proofs/artist/7d2c6332-1a3e-4c19-806b-ee973ffd9ef4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).