Pith Number

pith:IH4MHYPG

pith:2013:IH4MHYPGM2MUDHUJ2AFLLW724R

not attested not anchored not stored refs pending

An analytic theory of extremal hypergraph problems

Vladimir Nikiforov

arxiv:1305.1073 v2 · 2013-05-06 · 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{IH4MHYPGM2MUDHUJ2AFLLW724R}

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	2026-05-18T03:25:58.038139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41f8c3e1e66699419e89d00ab5dbfae46c22d309b3c7d66631521f16d799c836

Aliases

arxiv: 1305.1073 · arxiv_version: 1305.1073v2 · doi: 10.48550/arxiv.1305.1073 · pith_short_12: IH4MHYPGM2MU · pith_short_16: IH4MHYPGM2MUDHUJ · pith_short_8: IH4MHYPG

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/IH4MHYPGM2MUDHUJ2AFLLW724R \
  | 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: 41f8c3e1e66699419e89d00ab5dbfae46c22d309b3c7d66631521f16d799c836

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "256e7962e869094f63746f3e00f36c2f75b70b7ef487085b09787d09d00e35d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-05-06T02:50:19Z",
    "title_canon_sha256": "d57b87acab7c0b9c276a2f54a651b29322dc279b0b9c7cf78f22c1b8e3aed11d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1073",
    "kind": "arxiv",
    "version": 2
  }
}