Pith Number

pith:2Q4PTXT2

pith:2008:2Q4PTXT2RNBS2NKNIPRANHJZAZ

not attested not anchored not stored refs pending

Generalized Whac-a-Mole

Artur Jez, Christoph Durr, Grzegorz Stachowiak, Jakub Lopuszanski, Lukasz Jez, Marcin Bienkowski, Marek Chrobak, Mathilde Hurand

arxiv:0802.1685 v2 · 2008-02-12 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2Q4PTXT2RNBS2NKNIPRANHJZAZ}

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	2026-05-18T01:05:13.779725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d438f9de7a8b432d354d43e2069d39064262c2c26d6e30ecab552f4017342a43

Aliases

arxiv: 0802.1685 · arxiv_version: 0802.1685v2 · doi: 10.48550/arxiv.0802.1685 · pith_short_12: 2Q4PTXT2RNBS · pith_short_16: 2Q4PTXT2RNBS2NKN · pith_short_8: 2Q4PTXT2

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/2Q4PTXT2RNBS2NKNIPRANHJZAZ \
  | 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: d438f9de7a8b432d354d43e2069d39064262c2c26d6e30ecab552f4017342a43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d3bd761a0c9a0331f95826a60f3e2684664bf0a24679bc66a345c76426a1602",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.DS",
    "submitted_at": "2008-02-12T18:41:46Z",
    "title_canon_sha256": "6aa93b1e2e16491cfcdda3b092cdffe22ae9bba9388b9f129d7a5a5ca6467040"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.1685",
    "kind": "arxiv",
    "version": 2
  }
}