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 0xac84c92b30ec0b411dee26b2bbff2a78b7271170f3a3e9cf5d87ae0854a998c6. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e7dab48-f9d0-480d-971b-f7fd7eee6511.json and https://artists.proofprofile.net/proofs/artist/0e7dab48-f9d0-480d-971b-f7fd7eee6511.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Na to Paris to Koritsi (1937-1947), Vol. 1
Na 'Rthis Stis Efta to Vradi 1948, Vol. 2