Pith Number

pith:WDNISWQN

pith:2013:WDNISWQNMFECWD7EJCF7WDUZP6

not attested not anchored not stored refs pending

Deterministic vs Non-deterministic Graph Property Testing

Asaf Shapira, Lior Gishboliner

arxiv:1304.1982 v1 · 2013-04-07 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WDNISWQNMFECWD7EJCF7WDUZP6}

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	2026-05-18T03:28:44.546618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0da895a0d61482b0fe4488bfb0e997fa22711ec03f48dd1beb496cfec0a79e3

Aliases

arxiv: 1304.1982 · arxiv_version: 1304.1982v1 · doi: 10.48550/arxiv.1304.1982 · pith_short_12: WDNISWQNMFEC · pith_short_16: WDNISWQNMFECWD7E · pith_short_8: WDNISWQN

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/WDNISWQNMFECWD7EJCF7WDUZP6 \
  | 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: b0da895a0d61482b0fe4488bfb0e997fa22711ec03f48dd1beb496cfec0a79e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f28ca32848830870c84262152b79baf9754788d258f0fef957b797633459492",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-04-07T11:14:03Z",
    "title_canon_sha256": "91e04abc38b5766af5c00703d56fd7592ad5ce72386deab4abec99726e815e51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1982",
    "kind": "arxiv",
    "version": 1
  }
}