Ice Castles is a 1978 American romantic drama film directed by Donald Wrye and starring Lynn-Holly Johnson and Robby Benson. It is the story of Lexie Winston, a young figure skater, and her rise and f
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 0xb709c24774a9599190c3c8c80b65187f5168e7c9136449b099f9dc365dc58a33. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/687b1d0d-4857-478f-bd2b-a352e800fd1c.json and https://artists.proofprofile.net/proofs/artist/687b1d0d-4857-478f-bd2b-a352e800fd1c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.