Pith Number

pith:WAAIYMNY

pith:2013:WAAIYMNYV4P5T3REBCYZ2XFSDT

not attested not anchored not stored refs pending

Tree Compression with Top Trees

Gad M. Landau, Inge Li Goertz, Oren Weimann, Philip Bille

arxiv:1304.5702 v2 · 2013-04-21 · 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{WAAIYMNYV4P5T3REBCYZ2XFSDT}

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	2026-05-18T02:52:12.680862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0008c31b8af1fd9ee2408b19d5cb21ccc84b07e7d9103dbbba0395369ea6529

Aliases

arxiv: 1304.5702 · arxiv_version: 1304.5702v2 · doi: 10.48550/arxiv.1304.5702 · pith_short_12: WAAIYMNYV4P5 · pith_short_16: WAAIYMNYV4P5T3RE · pith_short_8: WAAIYMNY

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/WAAIYMNYV4P5T3REBCYZ2XFSDT \
  | 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: b0008c31b8af1fd9ee2408b19d5cb21ccc84b07e7d9103dbbba0395369ea6529

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a04076e0282a9ccd34f99189eaebf03eb729ab33cc6820159704bcb61a0ba1b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-04-21T07:38:50Z",
    "title_canon_sha256": "4fa4e39bdbe12e074a7ff827004135d6bcb9fae7e1dca97efc206dde4396fbe6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5702",
    "kind": "arxiv",
    "version": 2
  }
}