Pith Number

pith:NAIAO2BG

pith:2026:NAIAO2BGWW4UGHCGFCC4VNIDQU

not attested not anchored not stored refs pending

Probing for Knowledge Attribution in Large Language Models

Alexander Boer, Dennis Ulmer, Ivo Brink

arxiv:2602.22787 v2 · 2026-02-26 · 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{NAIAO2BGWW4UGHCGFCC4VNIDQU}

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	2026-05-28T02:04:46.593590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6810076826b5b9431c462885cab503852476ddfb39f6831d9fb97036cf88f734

Aliases

arxiv: 2602.22787 · arxiv_version: 2602.22787v2 · doi: 10.48550/arxiv.2602.22787 · pith_short_12: NAIAO2BGWW4U · pith_short_16: NAIAO2BGWW4UGHCG · pith_short_8: NAIAO2BG

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/NAIAO2BGWW4UGHCGFCC4VNIDQU \
  | 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: 6810076826b5b9431c462885cab503852476ddfb39f6831d9fb97036cf88f734

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59dd089fe55dd35b6af5b22630211a5f6e1ca6c4360c8b6038134f15d7217538",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-02-26T09:21:12Z",
    "title_canon_sha256": "0ff9fe7a2688c1744a580c4d43e6a5dfa93f8cd65b3cea5115551b7736937bf0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.22787",
    "kind": "arxiv",
    "version": 2
  }
}