Pith Number

pith:WTFDOGAH

pith:2013:WTFDOGAHHFDJUW6BPF4C7JHHGJ

not attested not anchored not stored refs pending

Efficient Lyndon factorization of grammar compressed text

Hideo Bannai, Masayuki Takeda, Shunsuke Inenaga, Tomohiro I, Yuto Nakashima

arxiv:1304.7061 v1 · 2013-04-26 · 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{WTFDOGAHHFDJUW6BPF4C7JHHGJ}

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	2026-05-18T03:27:02.668764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4ca37180739469a5bc179782fa4e7325cac26a987cfd1cb39fd12804526e97d

Aliases

arxiv: 1304.7061 · arxiv_version: 1304.7061v1 · doi: 10.48550/arxiv.1304.7061 · pith_short_12: WTFDOGAHHFDJ · pith_short_16: WTFDOGAHHFDJUW6B · pith_short_8: WTFDOGAH

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/WTFDOGAHHFDJUW6BPF4C7JHHGJ \
  | 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: b4ca37180739469a5bc179782fa4e7325cac26a987cfd1cb39fd12804526e97d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff4cd415b59388f7a448bcf5b69555dc5d3935fff1c1c568cba10d3039eb9019",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-04-26T04:04:54Z",
    "title_canon_sha256": "1743be3f0e08dcd47ee0f1cd942e926f503269fe5a090e038d1335b2a4e08ca0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7061",
    "kind": "arxiv",
    "version": 1
  }
}