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AI can't read an investor deck AI as an attorney? Student uses ChatGPT, Gemini to sue UW over alleged racial discrimination Hacking MCP Servers in AI Systems – The Rug Pull: Tool Changes After Approval GitHub - MeepCastana/KubeezCut: Free Web based video editor Can AI judge journalism? A Thiel-backed startup says yes, even if it risks chilling whistleblowers Coming soon: 10 Things That Matter in AI Right Now DARPA built an AI to fact-check enemy weapons claims What explains heterogeneity in AI adoption? When AI Meets Muscle: Context-Aware Electrical Stimulation Promises a New Way to Guide Human Movements - Department of Computer Science AI Changed How We Build. It Did Not Change What Matters. Linux rules on using AI-generated code - Copilot is OK, but humans must take 'full responsibility for the… Meta spins up AI version of Mark Zuckerberg to engage with employees Code Mode: Let Your AI Write Programs, Not Just Call Tools | TanStack Blog GitHub - Delavalom/graft: Go framework for building AI agents. Type-safe tools, multi-provider (OpenAI, Anthropic, Gemini, Bedrock), zero vendor SDKs. India's TCS tops estimates, says new AI models did not dent services demand Gen Z's fading AI hype Strong feeling: we are in a folded AI reality GitHub - machinarii/total-recall-catalog: A reference catalog of latest knowledge retrieval, memory & RAG systems GitHub - mensfeld/code-on-incus: Give each AI agent its own isolated machine with root, Docker, and systemd. Active defense detects and stops threats automatically.. Quantization, LoRA, and the 8% Problem: Benchmarking Local LLMs for Production AI Iran war: We spoke to the man making Lego-style AI videos that experts say are powerful propaganda Powell, Bessent discussed Anthropic's Mythos AI cyber threat with major U.S. banks GitHub - immartian/bellamem: Persistent belief-graph memory for AI agents. Retrieves decisive context by importance — not recency, not RAG, not /compact. recursive-mode: The Repo-Native Operating System for AI Engineering After the attack on Sam Altman's home, will AI CEO's go on the offensive? The biggest advance in AI since the LLM Opus 4.6 vs GPT 5.4 One Prompt Unity World Generation Test “AI polls” are fake polls Client Challenge Can AI be a 'child of God'? Inside Anthropic's meeting with Christian leaders
PSA — Posture Sequence Analysis
k-thimmaraju · 2026-06-18 · via Hacker News - Newest: "AI"

Standards & Compliance

Standards & Compliance Mapping

Every AI governance instrument names an obligation — record-keeping, robustness, post-market monitoring, human oversight — but none names a metric. PSA is the behavioral evidence layer: the deterministic, timestamped, externally-verifiable measurement that discharges the measurable half of those obligations. This page maps PSA, honestly, onto twelve frameworks in force in 2026.

5

strong-coverage frameworks

Section 01

Thesis

Read the AI governance instruments of 2026 side by side and the same shape appears every time. Each tells an organization what it must achieve — keep records, be robust to attack, monitor the system after deployment, keep a human in the loop, manage risk. Not one tells you how to measure whether you did it. They are, by design, technology-agnostic: they name the obligation and leave the metric to you.

That gap is the opportunity. PSA is the behavioral evidence layer — the instrument that turns "we monitor for drift" into a deterministic, timestamped number with a defined formula, and "we log relevant events" into a hash-chained record you can verify without trusting us. PSA does not replace a management system or a governance function. It supplies the proof under the promise.

PSA public spec — GitHub Field Guide — every PSA signal

Section 02

The Six Evidence Primitives

Across all twelve frameworks, PSA's contribution reduces to six evidence primitives. Each crosswalk row maps a requirement to one or more of these.

ID Primitive PSA signals
E1Deterministic behavioral event logPosture codes (I/P/M/H/G) + alert ladder
E2Tamper-evident log integrity, externally verifiableSIGTRACK — hash-chained, drand-anchored, /verify-chain
E3Adversarial / robustness measurementC0 input intent (I0–I9), C1 adversarial stress, CPI
E4Human–AI interaction risk (incl. psychological harm)DRM (IRS, RAS, RAG), HRI
E5Continuous monitoring & forecastingBHS, POI, DPI, PE, CPF3 (EWMA+HMM)
E6Behavioral transparency / explainabilityNamed posture codes + named, auditable alert reasons

Section 03

Framework → PSA Crosswalk

Requirement-by-requirement mapping. Filter by framework or by coverage level. Coverage is marked honestly — green only where PSA produces exactly the evidence asked for.

DIRECT PSA produces the evidence, deterministically. PARTIAL PSA supplies a measurable input to an otherwise procedural requirement. OUT Structurally outside PSA (procedural, or protected-attribute fairness).

Requirement PSA mapping Coverage
ISO/IEC 42001:2023 — AI management system (the certifiable anchor — see the dedicated mapping)
A.6.2.6/.8 · A.5 · C.2.8–11Evidence layer: operation logs, impact, robustness/transparency/safety → BHS/POI/DRM/SIGTRACK/CPF3DIRECT
EU AI Act — Regulation (EU) 2024/1689
Art. 12 — Record-keepingAutomatic event logging over lifetime → E1 posture log + E2 SIGTRACK tamper-evident trailDIRECT
Art. 15 — Accuracy, robustness, cybersecurityResilience to adversarial inputs → E3 C0/C1/CPI runtime measurementDIRECT
Art. 72 — Post-market monitoringContinuous documented monitoring → E5 BHS/POI longitudinal + CPF3 forecastDIRECT
Art. 13 — Transparency to deployersInterpretable operation → E6 named posture codes + named alert reasonsPARTIAL
Art. 14 — Human oversightEnable intervention → E4 DRM/IRS real-time risk surfacing + alert ladderPARTIAL
Art. 9 — Risk management systemIterative risk evaluation → E4/E5 runtime signals feed the processPARTIAL
Art. 55 — GPAI systemic riskModel eval, adversarial testing, incident tracking → E3 war-zone probes + E1 incident loggingPARTIAL
Art. 10/11/17 — Data governance, technical docs, QMSProcedural / organizationalOUT
NIST AI RMF 1.0 (2023) + Generative AI Profile (NIST-AI-600-1, 2024)
MEASURE 2.x — TEVV & monitoringPSA's home function — E1–E6 across the boardDIRECT
MEASURE 2.6 / 2.7 — Safety; security & resilienceE3 adversarial + E4 safety riskDIRECT
MEASURE 2.8 / 2.9 — Transparency, accountability, explainabilityE6 posture codes + E2 SIGTRACKDIRECT
MEASURE 2.3 / 2.5 / 2.13 — Eval, validity, ongoing monitoringE5 BHS/POI/CPF3DIRECT
MANAGE 4.x — Monitoring & incident responseE5 + alert ladder feed the functionPARTIAL
MAP 1–5 — Context establishmentE4 DRM domain targeting (legal/health/finance)PARTIAL
GOVERNOrganizational culture, policy, accountability structuresOUT
MEASURE 2.11 — Fairness & biasProtected attributes never ingestedOUT
ISO/IEC 23894:2023 — AI risk management (guidance)
Risk identification & analysisE4 DRM runtime risk + E1 posture evidencePARTIAL
Risk monitoring & reviewE5 BHS/POI/CPF3PARTIAL
Risk treatment & governance integrationProceduralOUT
ISO/IEC 42005 — AI system impact assessment
Evidence of actual behavioral impactsE4 DRM (IRS, RAS) runtime — incl. psychological harmPARTIAL
Documentation & sign-off of the assessmentProceduralOUT
ISO/IEC TR 24028 (trustworthiness) & TR 24027 (bias)
TR 24028 — robustness & transparency aspectsE3 adversarial + E6 transparencyPARTIAL
TR 24027 — bias in AI systemsProtected attributes never ingestedOUT
OECD AI Principles (2019, updated 2024)
1.4 — Robustness, security & safetyE3 C1/C5 + E5 CPF3DIRECT
1.3 — Transparency & explainabilityE6 posture codesPARTIAL
1.5 — AccountabilityE2 SIGTRACK verifiable trailPARTIAL
1.2 — Human-centred values & fairnessBias subset out of scopeOUT
Council of Europe — Framework Convention on AI (2024)
Documentation, traceability, oversightE1/E2 + E4PARTIAL
Rights-based governance, redressTreaty-level / proceduralOUT
US Colorado AI Act — SB 24-205 (effective 2026)
Risk-management policy & programmeE5 monitoring evidencePARTIAL
Impact assessment for consequential decisionsE4 behavioral evidencePARTIAL
Duty to avoid algorithmic discriminationBias on protected attributes — out of scopeOUT
Singapore — Model AI Governance Framework / AI Verify
Robustness & behavioral safety testingE3 C-classifiers + war-zone probesDIRECT
Operations management & monitoringE5 BHS/CPF3PARTIAL
AI Verify fairness testingBias subset out of scopeOUT
MITRE ATLAS — adversarial ML threat knowledge base
Prompt injection, jailbreak, evasion at runtimeE3 C0 input intent (I1–I9), C1 adversarial stress, CPI, semantic-drift detectionDIRECT
Model/data poisoning, supply-chain, weight exfiltrationOutside the text-behavioral surfaceOUT
SOC 2 / ISO/IEC 27001 — security & audit controls
Audit-log integrity, tamper-evidence, monitoringE2 SIGTRACK — verifiable without trusting the issuerPARTIAL
Full ISMS (access control, change mgmt, …)Procedural / infrastructuralOUT
Sectoral instruments
GDPR Art. 22 — Automated decision-making safeguardsE4 DRM evidence + E6 named reasonsPARTIAL
HIPAA — health conversational-AI safetyE4 IRS/DRM crisis detection (safety layer, not a HIPAA control)PARTIAL
SR 11-7 — model risk management (finance)E5 CPF3 + behavioral drift + benchmark (ongoing monitoring + effective challenge)PARTIAL

Section 04

Where PSA Stops — Said Plainly

The honest half of the story is the part PSA does not cover, and it is the same boundary in every framework. PSA reads what a model does, from its output text, from the outside. It therefore says nothing about the procedural and organizational half of governance — leadership, policy, human resources, data governance, third-party management, conformity assessment. Those are real obligations; they are simply not measurements.

And PSA is deliberately silent on bias and fairness over protected attributes. PSA never ingests demographics — it has no race, gender, or age field to discriminate on. That makes it structurally non-discriminatory, but it also means PSA cannot evidence the fairness duties at the centre of NIST MEASURE 2.11, ISO/IEC TR 24027, or Colorado's anti-discrimination core. We do not claim that ground; we name it as out of scope on every row.

The result is a clean division of labour. The framework is the certifiable anchor and the organizational programme. PSA is the telemetry and the evidence store underneath it — covering the measurable half, and pointing honestly at the half it does not touch.