Lock truth. Verify anywhere. Trust no one.
A Möbius Truth Lock is a portable cryptographic integrity record composed of standard, open primitives. It proves a file existed in its exact form at or before a specific point in time.
Any alteration to the file — even a single bit — produces a different hash, breaking the integrity match and making the tampering cryptographically detectable.
The hash is not stored in a database for you to check against. The hash is in your receipt, your email, your PDF — so you can verify it anywhere, any time, with any SHA-256 tool on earth.
SHA-256 digest of the original file. The immutable digital fingerprint. Deterministic — same file always produces the same hash. Computed locally in-browser using the Web Crypto API. File never leaves the device.
ISO 8601 timestamp recorded at the moment of sealing. Example: 2026-04-12T03:22:16.141Z. Establishes the existence proof boundary — the file existed in this form at or before this moment.
PBKDF2-SHA256 applied to content hash + metadata. Strengthens the binding against pre-image attacks. Current implementation uses proven classical cryptography.
Content-addressed IPFS CID via Pinata. Provides decentralized, location-independent retrieval without depending on any single server or platform.
Human-readable declaration confirming the integrity record, including verification instructions and the Möbius Truth Lock designation. Printable. Court-presentable.
NIST-standardized ML-KEM (CRYSTALS-Kyber, FIPS 203) strengthening for future seal layers. Not yet active. Current SHA-256 + PBKDF2 layer is the operative security model.
Drop any file to compute its SHA-256 hash locally in your browser. Compare it against any Möbius Truth Lock receipt. Nothing leaves your device.
Compare this value against the contentHash field in any Möbius Truth Lock receipt. If they match exactly, the file has not been altered.
If this condition is true, the record is valid. If it fails, the file has been altered or the record is invalid. This computation can be performed by anyone using any standard SHA-256 implementation. No account. No login. No trust required.
Anyone can verify the lock using only standard cryptographic functions and the original file. No platform access, account, or login required. Ever.
Any change to the file or sealed metadata — even a single bit — produces a different hash, breaking the integrity match and making tampering cryptographically detectable.
The record proves the file existed in this exact form at or before the recorded timestamp — a legally meaningful distinction in digital evidence proceedings.
Any system can implement or verify a Möbius Truth Lock using open, standard cryptographic functions. It is not proprietary to DigitalCaseLog. Implemented here — not owned here.
IPFS CID ensures file retrievability independent of any single server. The CID is sealed into the record for permanent reference regardless of platform availability.
Current seals use proven classical cryptography (SHA-256 + PBKDF2). Post-quantum strengthening via NIST ML-KEM (FIPS 203) is planned for future seal layers. Not yet active.
Most evidence platforms say: "Trust our database." Möbius Truth Lock says: "Verify it yourself." That is the category distinction.
The Möbius Truth Lock is designed to support strong evidentiary integrity through cryptographic verification, timestamps, and decentralized anchoring. It provides independent, reproducible proof of file integrity and existence at a specific time.
IMPORTANT: Any alteration to the file or its metadata is cryptographically detectable and will invalidate the integrity match. The record does not guarantee admissibility in any jurisdiction.
Final admissibility remains subject to court rules, chain-of-custody procedures, and judicial discretion. DigitalCaseLog does not provide legal advice. Consult qualified legal counsel for evidentiary strategy.