The Lips () is a 2010 Argentine drama film directed by Iván Fund and Santiago Loza. It was entered into the Un Certain Regard section of the 2010 Cannes Film Festival. The film opened theatrically in
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fe890d5397f3f35e1e7f9bb00779e99c5aefd7ecdcc3d50e6e412cb0332c16. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10ff8f00-4a55-401c-86e8-7ef47e08b349.json and https://artists.proofprofile.net/proofs/artist/10ff8f00-4a55-401c-86e8-7ef47e08b349.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).