Passage, The Passage or Le Passage may refer to: Arts and entertainment Films Passage (2008 film), a documentary about Arctic explorers Passage (2009 film), a short movie about three sisters Passa
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 0xc0b29ed87fbc9a621efd6e310d0f315577a08d6cbe9077c373d78b6d4bc577bc. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0f49dd7-ca13-4f22-b97d-0c70388a6453.json and https://artists.proofprofile.net/proofs/artist/e0f49dd7-ca13-4f22-b97d-0c70388a6453.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Demos from "Voyage" (early versions) [Early Demo Version]