Masada ( , 'fortress'; ); the term simply means "fortress" in Modern Hebrew; in Biblical Hebrew "mountain-fortress; stronghold" from a root meaning "to hunt, lie in wait for prey". Gesenius, Hebrew
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 0xd4cf2d3a13e2233695dc72fb7957e1f090fe69bde091b13a8073d38d65933a09. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fee2918-46e5-4fbd-be55-ecf1b91f0c01.json and https://artists.proofprofile.net/proofs/artist/7fee2918-46e5-4fbd-be55-ecf1b91f0c01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).