Pith Number

pith:ALDM5L7F

pith:2012:ALDM5L7FLILMWHMLLUCSELIUI5

not attested not anchored not stored refs pending

Finding a princess in a palace: A pursuit-evasion problem

John R. Britnell, Mark Wildon

arxiv:1204.5490 v1 · 2012-04-24 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ALDM5L7FLILMWHMLLUCSELIUI5}

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	2026-05-18T03:57:02.270202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02c6ceafe55a16cb1d8b5d05222d14476a4e233d3f723a7be5012ea65c577199

Aliases

arxiv: 1204.5490 · arxiv_version: 1204.5490v1 · doi: 10.48550/arxiv.1204.5490 · pith_short_12: ALDM5L7FLILM · pith_short_16: ALDM5L7FLILMWHML · pith_short_8: ALDM5L7F

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/ALDM5L7FLILMWHMLLUCSELIUI5 \
  | 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: 02c6ceafe55a16cb1d8b5d05222d14476a4e233d3f723a7be5012ea65c577199

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0a92e6577433612cc5c54199e2e93f63f697df2fdf312e7ba13a7dd80478b8c",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-04-24T20:22:05Z",
    "title_canon_sha256": "50f31439dd8bd450afe139e7f7712ba8c5e6e2bbcdec339a7779953da634249a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5490",
    "kind": "arxiv",
    "version": 1
  }
}