One of Us may refer to: Film One of Us (1989 film) (Echad Mi'Shelanu), an Israeli film directed by Uri Barbash One of Us (2017 film), an American documentary directed by Heidi Ewing and Rachel Grad
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 0x66d7653184b373e496f9f869556326560b761be67e6e0fcb3ca47c9110582946. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95a7c0c8-056c-4a9f-9a52-3fa7c5fbecce.json and https://artists.proofprofile.net/proofs/artist/95a7c0c8-056c-4a9f-9a52-3fa7c5fbecce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).