Pith Number

pith:FBFA32GD

pith:2025:FBFA32GDEDTQRSVX4QIJWT5J4I

not attested not anchored not stored refs pending

Enabling External Scrutiny of AI Systems with Privacy-Enhancing Technologies

Helen Toner, Kendrea Beers

arxiv:2502.05219 v1 · 2025-02-05 · cs.CY · cs.AI · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FBFA32GDEDTQRSVX4QIJWT5J4I}

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.

Receipt and verification

First computed	2026-07-05T10:11:34.269944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

284a0de8c320e708cab7e4109b4fa9e21ad28cb5bcdf12c818f1600ed242fe41

Aliases

arxiv: 2502.05219 · arxiv_version: 2502.05219v1 · doi: 10.48550/arxiv.2502.05219 · pith_short_12: FBFA32GDEDTQ · pith_short_16: FBFA32GDEDTQRSVX · pith_short_8: FBFA32GD

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/FBFA32GDEDTQRSVX4QIJWT5J4I \
  | 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: 284a0de8c320e708cab7e4109b4fa9e21ad28cb5bcdf12c818f1600ed242fe41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "313745f9ce7a2bae752618735b136196bd6943cba92ddb1b932379153e50d40a",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2025-02-05T15:31:11Z",
    "title_canon_sha256": "e594188f13dd7300125d41cd7d434873d56f22b116f36d9eba407b870aac9704"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.05219",
    "kind": "arxiv",
    "version": 1
  }
}