LARRI Core conceptual UI
This lightweight public UI demonstrates receipt-building for healthcare claim lines. It is not the full LARRI Core application.
- Synthetic patient case files
- Claim-line attestation pipeline
- Ledger anchoring
LARRIThe Ledger of Attested Records
and Receipts for Integrity
and Receipts for Integrity
Portable proof for automated decisions.
LARRI (LAIR-ee) is an open protocol for portable, signed records of the evidence, rules, software, and trust behind consequential digital decisions.
Protocol introduction
What is LARRI?
Start here
How LARRI makes evidence independently verifiable.
What a LARRI receipt records.
Each receipt binds the decision or digital release to the exact materials and authority declared behind it.
Evidence
The inputs and supporting artifacts checked for the decision.
Rules
The policies, thresholds, and declared behavior applied.
Software
The version and configuration used to produce the result.
Signer and trust
The signer details and separately supplied trusted keys.
Decision record
The outcome or release and its declared verification scope.
Independent verification
A precise account of what happened to the record.
Verification reports each state explicitly.
- 01Checked
- 02Matched
- 03Changed
- 04Missing
- 05Unproven
Organizations can use that account to detect tampering or drift, protect sensitive trust information, govern automation responsibly, and resolve disputes.
Conceptual protocol implementation · Healthcare
A neutral protocol, demonstrated in practice.
Go to healthcare pageTwo applications conceptually illustrate the protocol for healthcare claims.
LARRI Verifier conceptual UI
Independently re-checks any receipt with supplied trust inputs — every binding verified, failing closed on substitution or drift.
- Drop-in receipt verification
- Pass / refuse outcomes with reasons
- No proprietary logic required