Evidence
Trust proves what happened. Every Alice decision issues a Trust Receipt 2.0 and appends a sealed event to the audit chain; the chain is re-verified every time this page renders.
Trust Receipts · 12
Trust Receipt 2.0
Version 1.0 proved a model decision. Version 2.0 proves an agent's action under authority.
| Field group | What it answers | Since |
|---|---|---|
| Decision ID · purpose · classification · residency | What was asked and on what data | 1.0 |
| Model requested → selected · verdict · reason code | Which model and why it was allowed, held, or refused | 1.0 |
| Human review · evidence references · audit position | Who approved, what supports it, where it sits in the chain | 1.0 |
| Human identity (role, provider) · agent identity · autonomy level · owner | Who asked, through which agent, under what authority | 2.0 |
| Business workflow · tools · action · risk · reversibility | What the agent was trying to do, and how reversible it was | 2.0 |
| Full structured check list · policies triggered · approval outcome | The whole decision evidence, not just the headline | 2.0 |
| Outcome | What actually happened after the verdict | 2.0 |
Never on a receipt: prompts, model outputs, patient content, or individual names. Receipts are governance metadata. The 1.0 receipts remain at /demo/trust-receipt.
Audit chain
Verification
PASS 17 events re-verified on render.
Head hash
1ad481ed7c53443efe68be69f9b290b2c104b99bf6e3552ee802c670e2cb59e2
Tamper demonstration
A copy with one BLOCK rewritten to ALLOW fails at event #6: selfHash does not match content (tampered)
- #0ALICE DECISION · ALC-2026-0912-0006 · REVIEW2026-09-12T06:00:02.000Z · system · alice · self e0c84817dc9cdbc8… · prev 0000000000…
- #1HUMAN APPROVED · ALC-2026-0912-00062026-09-12T06:04:40.000Z · user · role:AI Governance Lead · self e1792d2dbd77fdc9… · prev e0c84817dc…
- #2ALICE DECISION · ALC-2026-0912-0007 · REVIEW2026-09-12T06:14:33.000Z · system · alice · self aa2fcebcbc076dc2… · prev e1792d2dbd…
- #3HUMAN APPROVED · ALC-2026-0912-00072026-09-12T08:02:15.000Z · user · role:AI Governance Lead · self 05ff587de044df6b… · prev aa2fcebcbc…
- #4ALICE DECISION · ALC-2026-0912-0001 · REVIEW2026-09-12T13:02:11.000Z · system · alice · self 68b36fb488f8435a… · prev 05ff587de0…
- #5HUMAN APPROVED · ALC-2026-0912-00012026-09-12T13:09:44.000Z · user · role:Attending physician · self b5af52efed6f6da7… · prev 68b36fb488…
- #6ALICE DECISION · ALC-2026-0912-0002 · BLOCK2026-09-12T13:41:50.000Z · system · alice · self 5d6a5d6b897f8dcb… · prev b5af52efed…
- #7ALICE DECISION · ALC-2026-0912-0003 · ALLOW2026-09-12T14:10:05.000Z · system · alice · self c550d6277f3221b1… · prev 5d6a5d6b89…
- #8ALICE DECISION · ALC-2026-0912-0004 · ALLOW2026-09-12T14:12:40.000Z · system · alice · self 7968e8fbc1caa96b… · prev c550d6277f…
- #9ALICE DECISION · ALC-2026-0912-0005 · REVIEW2026-09-12T14:30:18.000Z · system · alice · self 67fcf72eef21044d… · prev 7968e8fbc1…
- #10HUMAN REJECTED · ALC-2026-0912-00052026-09-12T14:58:31.000Z · user · role:Director of Operations · self 0b55741a717ecc5d… · prev 67fcf72eef…
- #11ALICE DECISION · ALC-2026-0912-0008 · REVIEW2026-09-12T15:05:47.000Z · system · alice · self 93faed72b6c0b8bf… · prev 0b55741a71…
- #12ALICE DECISION · ALC-2026-0912-0009 · ALLOW2026-09-12T15:40:12.000Z · system · alice · self b026689a48aba24b… · prev 93faed72b6…
- #13ALICE DECISION · ALC-2026-0912-0010 · BLOCK2026-09-12T15:52:30.000Z · system · alice · self 9a61da861ffe7c5d… · prev b026689a48…
- #14ALICE DECISION · ALC-2026-0912-0011 · BLOCK2026-09-12T16:20:00.000Z · system · alice · self 2ef3de316fb5b6f8… · prev 9a61da861f…
- #15ALICE DECISION · ALC-2026-0912-0012 · REVIEW2026-09-12T16:45:09.000Z · system · alice · self 6d4d97496ac73640… · prev 2ef3de316f…
- #16HUMAN APPROVED · ALC-2026-0912-00122026-09-12T16:52:02.000Z · user · role:Attending physician · self 1ad481ed7c53443e… · prev 6d4d97496a…
Honest status: the hash-chain module is implemented and tested; persisting the chain to the production audit table with database-level immutability is an approval-gated step. This page demonstrates the mechanism on synthetic events.
Alice on this site runs over the synthetic Lakeview General Hospital environment. Verdicts, checks, and receipts are computed by the Nexus decision engine on synthetic requests; nothing here is a customer, a patient, or a production deployment. Signed-in organizations see their own agents, decisions, and receipts.