Muhammad Atashi
Evidence-driven inference-change assurancePRIVATE CORE

InferenceLedger

InferenceLedger freezes a workload, captures attempt-level evidence, ledgers what was observed, verifies pairing and comparability, and then decides APPROVE, REJECT, or ABSTAIN.

Owns
Audits model and provider migrations against incomplete evidence
Status
External pilot not started · external validation not established
Stack
Python · Pydantic · SQLite · JSONL · Decimal · Provider Adapters
Public Reference

Canonical implementation can remain private; this portfolio exposes the product architecture, operating model, and engineering evidence.

Hard problem

A cheaper model is not a better migration if a required floor breaks.

Question · Does this specific inference change satisfy every requirement that was declared before the comparison?

APPLIES TO

AI Infrastructure Engineers · ML Platform Engineers · LLM Platform Teams · AI Backend Engineers · AI FinOps teams

PROOF

2 INCONCLUSIVE · 1 VALIDATED_MISMATCH · no retained snapshot outcome reached APPROVE

CAPABILITIES

7 declared in the project record

  • Frozen workload identity
  • Attempt-chain evidence
  • Unknown-cost semantics
  • Paired comparison
  • Critical segments
  • Non-compensatory gate
  • APPROVE / REJECT / ABSTAIN

Decision ledger

Evidence is recorded before the verdict becomes useful.

  1. 01

    Freeze

    workload identity · requirements · chronology
  2. 02

    Capture

    attempt chains · retries · cost origin
  3. 03

    Ledger

    reconstructable evidence · unknown cost stays unknown
  4. 04

    Verify

    pairing · segments · comparability
  5. 05

    Decide

    APPROVE · REJECT · ABSTAIN

CURRENT RETAINED STATE

2 INCONCLUSIVE · 1 VALIDATED_MISMATCH

No retained snapshot outcome reached APPROVE.

APPROVEAll declared requirements are satisfied.
REJECTA declared requirement is violated.
ABSTAINThe evidence is not sufficient for a decision.

Engineering decisions

The constraints that matter.

01

Attempt chains are evidence, not implementation detail

Retries and fallbacks can change cost, latency, and reliability even when the final request succeeds.

02

Missing cost stays unknown

Treating absent monetary evidence as zero creates false economic wins.

03

Requirements do not compensate for one another

A cheaper or faster candidate still fails if it breaks a required quality, reliability, latency, or critical-segment floor.

04

The comparison path is authoritative

Execution/import, pairing, comparison, and reporting share one explicit evidence contract so the final decision can be reconstructed.

Measurement contract

What would make the preferred answer fail?

EVALUATION METHOD

An inference change passes only when every predeclared requirement remains satisfied and the decision can be reconstructed from complete evidence.

Paired workloads, complete provider-attempt chains, pricing/provider provenance, exact monetary evidence, critical-segment analysis, and non-compensatory gates.

01

Evidence completeness

attempts · retries · fallbacks · unknowns
02

Pairing integrity

same workload identity and segment semantics
03

Quality floor

required task/evaluator threshold
04

Reliability floor

success and failure-path requirements
05

Latency floor

declared tail/deadline requirement
06

Economic floor

exact decimal cost on the controlled path
Retained evidenceWhat the snapshot kept.
InferenceLedger evidence board. Two retained outcomes are INCONCLUSIVE, one is VALIDATED_MISMATCH, the external pilot is not started, and no retained snapshot outcome reached APPROVE.
p50 latency delta
14,226 ms → 9,912 ms
Mean delta
+137.40625 ms
Monetary rule · frozen
Exact decimal cost · missing cost stays unknown

Board readings describe the retained snapshot, not production traffic. The board does not establish external, customer, or commercial validation, and no retained snapshot outcome reached APPROVE.

Validation

What the evidence actually supports.

Claims stay scoped

Retained snapshot outcomes

SUPPORTED

2 INCONCLUSIVE · 1 VALIDATED_MISMATCH

No retained snapshot outcome reached APPROVE.

External validation

NOT CLAIMED

Not established

Customer validation and commercial validation are not claimed.

Task 5 external pilot

NOT CLAIMED

Not started

Provider calls 0 · customer calls 0 · authorized spend $0.

Decision pipeline

SUPPORTED

Freeze → capture → ledger → verify → decide

APPROVE, REJECT, and ABSTAIN are the public verdicts. Historical artifacts keep their original labels.

Boundaries

— Not a generic API gateway— Not a general model-evaluation platform— Not a RAG framework— Not an agent orchestrator— Not a GPU/Kubernetes scheduler
← Selected systemsNext · ProofDiff