Cenere is a 1916 silent film directed by and starring Febo Mari. It is adapted from the 1904 novel by the Nobel Prize-winning Sardinian writer Grazia Deledda. It is notable as the only film performanc
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 0x6b9270c6e0c96f57849c318913cccfdeb0997c7e25c39ffca333b35d17f384f4. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fad82f3c-b2cb-44ee-ab3a-2f2cbc163faa.json and https://artists.proofprofile.net/proofs/artist/fad82f3c-b2cb-44ee-ab3a-2f2cbc163faa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).