Pith Number

pith:G6GWPD7D

pith:2014:G6GWPD7DFYBINKZRBNVOX2ETAD

not attested not anchored not stored refs pending

On the $f$-matching polytope and the fractional $f$-chromatic index

Stefan Glock

arxiv:1402.2916 v1 · 2014-02-12 · 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{G6GWPD7DFYBINKZRBNVOX2ETAD}

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	2026-05-18T02:59:16.946644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

378d678fe32e0286ab310b6aebe89300eb87b5632ef14fdce32dcff4cada10a5

Aliases

arxiv: 1402.2916 · arxiv_version: 1402.2916v1 · doi: 10.48550/arxiv.1402.2916 · pith_short_12: G6GWPD7DFYBI · pith_short_16: G6GWPD7DFYBINKZR · pith_short_8: G6GWPD7D

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/G6GWPD7DFYBINKZRBNVOX2ETAD \
  | 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: 378d678fe32e0286ab310b6aebe89300eb87b5632ef14fdce32dcff4cada10a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c7ab24e1d4848a8844b89f4a1313e350fed073b1577903cbb5c6ae1b650c5ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-02-12T18:06:48Z",
    "title_canon_sha256": "f78e21b13d2b1e9a8ac14b42713fc9a61c9d0be09e20ac0235b69350e7c99aa9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2916",
    "kind": "arxiv",
    "version": 1
  }
}