Pith Number

pith:E3JCUALX

pith:2026:E3JCUALXUZ7ZQLOXL6JW6OLNL2

not attested not anchored not stored refs pending

Trusting What You Cannot See: Auditable Fine-Tuning and Inference for Proprietary AI

Chaoyu Zhang, Heng Jin, Hexuan Yu, Ning Zhang, Shanghao Shi, Wenjing Lou, Y. Thomas Hou

arxiv:2603.07466 v2 · 2026-03-08 · cs.CR · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E3JCUALXUZ7ZQLOXL6JW6OLNL2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

2 papers in Pith

Position: Behavioural Assurance Cannot Verify the Safety Claims Governance Now Demands

Committed SAE-Feature Traces for Audited-Session Substitution Detection in Hosted LLMs

Receipt and verification

First computed	2026-07-23T01:23:34.526841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26d22a0177a67f982dd75f936f396d5eb8ccb3e43b0eb644d1a265d7d8221bc7

Aliases

arxiv: 2603.07466 · arxiv_version: 2603.07466v2 · doi: 10.48550/arxiv.2603.07466 · pith_short_12: E3JCUALXUZ7Z · pith_short_16: E3JCUALXUZ7ZQLOX · pith_short_8: E3JCUALX

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/E3JCUALXUZ7ZQLOXL6JW6OLNL2 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 26d22a0177a67f982dd75f936f396d5eb8ccb3e43b0eb644d1a265d7d8221bc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04b244492f83adb4e748daf9780c1d9815900e47ef3ab6eb34b589eb2e9fba26",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-03-08T05:06:45Z",
    "title_canon_sha256": "24aa0c92fd989e5b0d4d0e82f74c3c286fb340aecbbe2874f26a39d48ea62c84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.07466",
    "kind": "arxiv",
    "version": 2
  }
}