Pith Number

pith:U4DOX74V

pith:2021:U4DOX74VRDX33KDKBNDQJ2GVIB

not attested not anchored not stored refs pending

Disconnected Matchings

Bruno P. Masquio, Guilherme C. M. Gomes, Jayme L. Szwarcfiter, Paulo E. D. Pinto, Vinicius F. dos Santos

arxiv:2112.09248 v1 · 2021-12-16 · cs.DM · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4DOX74VRDX33KDKBNDQJ2GVIB}

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	2026-07-05T03:41:44.159885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a706ebff9588efbda86a0b4704e8d54068cb03861d690a62fc93a0cf36c07911

Aliases

arxiv: 2112.09248 · arxiv_version: 2112.09248v1 · doi: 10.48550/arxiv.2112.09248 · pith_short_12: U4DOX74VRDX3 · pith_short_16: U4DOX74VRDX33KDK · pith_short_8: U4DOX74V

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/U4DOX74VRDX33KDKBNDQJ2GVIB \
  | 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: a706ebff9588efbda86a0b4704e8d54068cb03861d690a62fc93a0cf36c07911

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d3ff2e5eb0f9c777f57910e48f5dc03b2dfec43dbd6c949b837ec4fbc514f34",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2021-12-16T23:14:08Z",
    "title_canon_sha256": "ca9de5cf467e8049430dc0160fe9c1b3996f4e41f4d3cfe1c0c59dd85fccdca4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.09248",
    "kind": "arxiv",
    "version": 1
  }
}