Pith Number

pith:2EKRYVVH

pith:2014:2EKRYVVHLMZ5SNI2MJKGR33SLM

not attested not anchored not stored refs pending

The matching polytope does not admit fully-polynomial size relaxation schemes

G\'abor Braun, Sebastian Pokutta

arxiv:1403.6710 v6 · 2014-03-26 · cs.CC · 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{2EKRYVVHLMZ5SNI2MJKGR33SLM}

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	2026-05-18T01:01:29.529078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1151c56a75b33d9351a625468ef725b2896dcb1be79faae88e2632da60091e9

Aliases

arxiv: 1403.6710 · arxiv_version: 1403.6710v6 · doi: 10.48550/arxiv.1403.6710 · pith_short_12: 2EKRYVVHLMZ5 · pith_short_16: 2EKRYVVHLMZ5SNI2 · pith_short_8: 2EKRYVVH

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/2EKRYVVHLMZ5SNI2MJKGR33SLM \
  | 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: d1151c56a75b33d9351a625468ef725b2896dcb1be79faae88e2632da60091e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a1c1c21e0ed4fad6422fc7213c07ec4db6ec742c8834c4f8bfd96cf668291b9",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-03-26T15:25:32Z",
    "title_canon_sha256": "8a63a585484a5608ba717cfcfb56efa2da6e74955a50835ef91d5a77c43aa189"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.6710",
    "kind": "arxiv",
    "version": 6
  }
}