Pith Number

pith:7I6ULGVV

pith:2008:7I6ULGVVBYFBERYENYXMTDBKQ2

not attested not anchored not stored refs pending

Boolean formulae, hypergraphs and combinatorial topology

James Conant, Oliver Thistlethwaite

arxiv:0808.0739 v2 · 2008-08-05 · math.AT · 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{7I6ULGVVBYFBERYENYXMTDBKQ2}

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	2026-05-18T04:42:02.088605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa3d459ab50e0a1247046e2ec98c2a86832c1ccbd6bf35890119ab5fa1ccbe89

Aliases

arxiv: 0808.0739 · arxiv_version: 0808.0739v2 · doi: 10.48550/arxiv.0808.0739 · pith_short_12: 7I6ULGVVBYFB · pith_short_16: 7I6ULGVVBYFBERYE · pith_short_8: 7I6ULGVV

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/7I6ULGVVBYFBERYENYXMTDBKQ2 \
  | 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: fa3d459ab50e0a1247046e2ec98c2a86832c1ccbd6bf35890119ab5fa1ccbe89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f07268711bf3844198a6c438df6e99de1e98378b909ad31ee0ffb4930602d776",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2008-08-05T22:50:32Z",
    "title_canon_sha256": "5097c72483e34c863c521909e736ba85ef721ccecf031a42a78a6868ffdc1e78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.0739",
    "kind": "arxiv",
    "version": 2
  }
}