Pith Number

pith:IQZP75AT

pith:2019:IQZP75AT5TT6BCVRPTZ57SKHGT

not attested not anchored not stored refs pending

Combinatorial Inscribability Obstructions for Higher-Dimensional Polytopes

Carsten E. M. C. Lange, G\"unter M. Ziegler, Jean-Philippe Labb\'e, Jonathan Spreer, Joseph Doolittle, Rainer Sinn

arxiv:1910.05241 v2 · 2019-10-11 · math.MG · 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{IQZP75AT5TT6BCVRPTZ57SKHGT}

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	2026-07-05T00:27:33.707946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4432fff413ece7e08ab17cf3dfc94734e26028e129d308c93b770a5d12261164

Aliases

arxiv: 1910.05241 · arxiv_version: 1910.05241v2 · doi: 10.48550/arxiv.1910.05241 · pith_short_12: IQZP75AT5TT6 · pith_short_16: IQZP75AT5TT6BCVR · pith_short_8: IQZP75AT

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/IQZP75AT5TT6BCVRPTZ57SKHGT \
  | 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: 4432fff413ece7e08ab17cf3dfc94734e26028e129d308c93b770a5d12261164

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92ac4e5289c962915d33d4ef65fd7e6501aeecacf449f401d1e6889374c0fd89",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2019-10-11T15:19:26Z",
    "title_canon_sha256": "361dd4bf6e69a952626c8c9df432bfd376923a9ce208b94377f83e869281328a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.05241",
    "kind": "arxiv",
    "version": 2
  }
}