Pith Number

pith:4QEMK6TB

pith:2018:4QEMK6TBSHELSUKSIIQ2LK3A4A

not attested not anchored not stored refs pending

Integrality Gaps for Colorful Matchings

Georgios Stamoulis, Steven Kelk

arxiv:1801.07937 v3 · 2018-01-24 · cs.DM · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4QEMK6TBSHELSUKSIIQ2LK3A4A}

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	2026-05-17T23:56:30.055291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e408c57a6191c8b951524221a5ab60e02471571496e7f61dabbf258c9400d2f5

Aliases

arxiv: 1801.07937 · arxiv_version: 1801.07937v3 · doi: 10.48550/arxiv.1801.07937 · pith_short_12: 4QEMK6TBSHEL · pith_short_16: 4QEMK6TBSHELSUKS · pith_short_8: 4QEMK6TB

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/4QEMK6TBSHELSUKSIIQ2LK3A4A \
  | 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: e408c57a6191c8b951524221a5ab60e02471571496e7f61dabbf258c9400d2f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5beb7402d3b5c36afbe0987dd35054b7bfd3b040abb9f3b6226e07f67c03a049",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-01-24T11:44:12Z",
    "title_canon_sha256": "20809be29c7d1c6a1a5aa4e45bd9bcbac59914e4fa8e1d1693d03a213477d763"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07937",
    "kind": "arxiv",
    "version": 3
  }
}