Pith Number

pith:2DJ64P5P

pith:2025:2DJ64P5PR3AKK2K33G5LQTEPGL

not attested not anchored not stored refs pending

Facts Fade Fast: Evaluating Memorization of Outdated Medical Knowledge in Large Language Models

Florian Matthes, Juraj Vladika, Mahdi Dhaini

arxiv:2509.04304 v1 · 2025-09-04 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2DJ64P5PR3AKK2K33G5LQTEPGL}

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	2026-07-05T12:04:56.942558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0d3ee3faf8ec0a5695bd9bab84c8f32e4733095f45af8a45fc325222ff8b2b6

Aliases

arxiv: 2509.04304 · arxiv_version: 2509.04304v1 · doi: 10.48550/arxiv.2509.04304 · pith_short_12: 2DJ64P5PR3AK · pith_short_16: 2DJ64P5PR3AKK2K3 · pith_short_8: 2DJ64P5P

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/2DJ64P5PR3AKK2K33G5LQTEPGL \
  | 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: d0d3ee3faf8ec0a5695bd9bab84c8f32e4733095f45af8a45fc325222ff8b2b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9862c2adcc5d1be23807efc99f75a36b8526b771569f635497d8b2a7c2b1e4c",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-09-04T15:17:50Z",
    "title_canon_sha256": "9d318771bf5e38eb76a659ca4ebfa148b9115f1775f3f4dde12ee99024b21705"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.04304",
    "kind": "arxiv",
    "version": 1
  }
}