Pith Number

pith:FTYW7AP5

pith:2022:FTYW7AP54FIVVBXWX57VHHQG4V

not attested not anchored not stored refs pending

The Exact Bipartite Matching Polytope Has Exponential Extension Complexity

Ola Svensson, Weiqiang Yuan, Xinrui Jia

arxiv:2211.09106 v1 · 2022-11-16 · cs.CC · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FTYW7AP54FIVVBXWX57VHHQG4V}

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	2026-07-05T05:16:47.787393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cf16f81fde1515a86f6bf7f539e06e55035a11cca9f7c01f73b7207c039c1d1

Aliases

arxiv: 2211.09106 · arxiv_version: 2211.09106v1 · doi: 10.48550/arxiv.2211.09106 · pith_short_12: FTYW7AP54FIV · pith_short_16: FTYW7AP54FIVVBXW · pith_short_8: FTYW7AP5

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/FTYW7AP54FIVVBXWX57VHHQG4V \
  | 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: 2cf16f81fde1515a86f6bf7f539e06e55035a11cca9f7c01f73b7207c039c1d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12f2293d7598b1c615fe6ac26622c99daa6699bd1cdce717c70637bb06532401",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2022-11-16T18:47:39Z",
    "title_canon_sha256": "556e59ed02730b61735c07183b8313da11ceb98b35a344fe66eacb8957c6f1c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.09106",
    "kind": "arxiv",
    "version": 1
  }
}