Firelight is a 1997 period romance film written and directed by William Nicholson and starring Sophie Marceau and Stephen Dillane. The film is about a woman who agrees to bear the child of an anonymou
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 0x7384d18bcaeb1873ece8813410fd908fe53df17bde1f34d259592287c9623f59. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f67ccf0b-8828-4ec5-af21-e1eecaf42690.json and https://artists.proofprofile.net/proofs/artist/f67ccf0b-8828-4ec5-af21-e1eecaf42690.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).