SNAPSHOT THEN
Stamped IDA Evidence Pack
The forwardable, time-stamped artifact produced by a Good Proof Stamp — built for procurement, disputes, and audit.
VALID
→ proceed (check Status Link)
NEEDS REFRESH
→ re-verify before relying
WITHDRAWN
→ stop relying (IDA = history)
NOT VERIFIED
→ fail-closed
Status Link = what's true now. IDA Evidence Pack = what was true then.
Not a certification. Scope-limited verification. Acceptance depends on counterparty/programme requirements.
Breaking
EUEU AI Act enforcement begins — high-risk AI systems now require conformity assessments (Feb 2025)│
UKUK publishes AI Safety Institute guidance on frontier model evaluations│
USANIST AI 600-1 released — GenAI risk profiles now standardised│
APACSingapore MAS issues advisory on AI-driven financial decision accountability│
AFRICASouth Africa POPIA enforcement targets automated decision-making systems│
MIDDLE EASTUAE ADGM publishes responsible AI framework for financial services│EUEU AI Act enforcement begins — high-risk AI systems now require conformity assessments (Feb 2025)│UKUK publishes AI Safety Institute guidance on frontier model evaluations│USANIST AI 600-1 released — GenAI risk profiles now standardised│APACSingapore MAS issues advisory on AI-driven financial decision accountability│AFRICASouth Africa POPIA enforcement targets automated decision-making systems│MIDDLE EASTUAE ADGM publishes responsible AI framework for financial services│Two Artifacts, One Standard
A Good Proof Stamp produces both. They serve different purposes.
Make the gate machine-checkable, not meeting-checkable.
Previously referred to as Proof Packs in some programmes. Now standardised as IDA Evidence Packs.
Status Link
Authoritative now
- Counterparty-verifiable Status Link
- Shows status, scope, expiry, signer
- Fail-closed: unreachable = NOT VERIFIED
- Designed for systems, tickets, contracts, UIs
IDA Evidence Pack
Snapshot then
- Time-stamped snapshot you can forward, file, and cite
- Built for committees, procurement, disputes, audit
- Append-only versioning pointer; withdrawal ≠ erasure
- Withdrawal updates current validity without rewriting history
- Excludes prompts/logs/PII by default (programme-gated access possible)
One Stamp produces both. The Status Link remains authoritative for current validity.
One is for systems and counterparties to check now. The other is for humans to file and cite later.
Good Proof LIVE Ledger (optional)
For high assurance programmes, status change events can be anchored to Good Proof LIVE Ledger for tamper evident timestamp finality.
Anchoring never exposes prompts, logs, PII, or internal identifiers by default.
What You Get
Every Stamped IDA Evidence Pack includes:
IDA Evidence Pack (snapshot view)
Accessible via canonical verify route (or programme-gated access when required)
Exportable snapshot
PDF export available for filing (programme-scoped)
Receipt digest / version reference (append-only)
Pack references the append-only record/version; receipt digest is published to the receipted history.
Status history pointer
Track changes over time
Canonical verification route
verify.goodproof.mindchill.ai
Default evidence window
90 days (configurable 30-365 days)
Default verification fields (Status Link)
These are the default Status Link verify fields (authoritative now). The IDA Evidence Pack is the time-stamped snapshot referenced by the Status Link.
{
"stamp_id": "GP-2026-0142-XK9",
"status": "VALID",
"scope": "hardship_determination",
"expires_at": "2026-06-15T00:00:00Z",
"verified_at": "2026-01-08T14:32:00Z",
"signer": "guardian_panel_uk_01",
"version": "v3",
"verify_url": "https://verify.goodproof.mindchill.ai/GP-2026-0142-XK9"
}stamp_idUnique identifier for the StampstatusVALID / NEEDS_REFRESH / WITHDRAWN / EXPIRED / NOT_VERIFIEDscopeAction class + explicit boundariesexpires_atEvidence window endverified_atTimestamp of verificationsignerAuthority reference: system or guardian panelversionAppend-only referenceverify_urlCanonical verification URLExcluded by default: prompts, logs, PII, internal identifiers. Programme-gated access is available for authorised verifiers with an auditable access trail.
IDA Evidence Pack snapshot includes (redacted by default): scope summary, qualifiers, evidence window, status-at-time, signer reference, and version pointer.
Boundaries
What this is — and isn't.
What it isn't
Not a certification.
Not a guarantee of outcome correctness.
What it is
Validity is within defined scope and evidence windows.
Withdrawal changes current validity; history remains.
If verification cannot be performed → NOT VERIFIED (fail-closed).
IDA Evidence Packs reference append only history so withdrawals change current validity without erasing what was issued.
For high assurance programmes, the IDA snapshot hash can be anchored to Good Proof LIVE Ledger.
How It's Created
The IDA Evidence Pack is automatically generated when a Stamp is issued.
01
Define the high-impact action class
Scope boundaries + evidence windows
02
Require a Stamp
No Stamp / NOT VERIFIED / NEEDS REFRESH / WITHDRAWN → block or escalate.
No Stamp → No Ship.
03
Issue Status Link + generate IDA Evidence Pack
Automatic snapshot creation tied to the verification
04
Guardians step in only when required
Exceptions, disputes, scoped human finality with anti-rubber-stamp controls
Why This Compounds Value
Beyond the first verification, the artifact compounds operational value.
Portability
Proof that travels outside your perimeter by link.
Standardisation
Templates reduce bespoke reporting and meeting time.
Renewal
Refresh cycles keep claims defensible as systems change.
Dispute readiness
Append-only history reduces dispute ambiguity and cost.
Counterparty adoption
Once accepted, approvals get faster and repeatable.
You don't buy another dashboard. You get an artifact your organisation can cite.
Who Uses the IDA
Different roles, same artifact. Need → How the IDA helps.
Legal / Procurement
Need: Contract-referenceable artifact
Helps: Verification rights; clause mapping
Learn more
Risk / Insurance / Audit
Need: Hostile scrutiny readiness
Helps: Append-only history; withdrawal semantics
Learn more
Product / AI
Need: Ship autonomy safely
Helps: Appealable decisions; repeatable verification
Learn moreWhere IDA Evidence Packs show up (by lane)
Same artifact. Different lane scopes.
Procurement Clearance (GateProof)
Who buys thisProcurement, legal, and vendor management teams
What it attaches toRFP responses, vendor onboarding, renewal decisions
External verifiersCustomers, auditors, regulators
Programme scoped. Rollout based. No guaranteed outcomes.
Security + Continuity
Without complexity. Built for hostile scrutiny.
Fail-closed semantics
If verification cannot be performed (network unreachable, timeout, error), the default response is NOT VERIFIED. Systems should block or escalate—never assume validity.
Optional continuity
High-assurance programmes may use an offline signed snapshot for limited-time continuity; the Status Link remains authoritative.
Frequently Asked Questions
Questions about the IDA Evidence Pack.
Make high-impact AI shippable.
Define your high-impact action classes. Require the Stamp. Let the Status Link do the rest.
Not a certification. Scope-limited verification. Acceptance depends on counterparty/programme requirements.