Pith Number

pith:A6N4POTY

pith:2017:A6N4POTYLWSTWTAYKWXUVUEKZP

not attested not anchored not stored refs pending

Contracting Bipartite Graphs to Paths and Cycles

Dani\"el Paulusma, Konrad K. Dabrowski

arxiv:1706.03750 v1 · 2017-06-12 · cs.DM · 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{A6N4POTYLWSTWTAYKWXUVUEKZP}

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	2026-05-18T00:42:33.843967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

079bc7ba785da53b4c1855af4ad08acbf8c6ec4240d1734813b7238a109f6c98

Aliases

arxiv: 1706.03750 · arxiv_version: 1706.03750v1 · doi: 10.48550/arxiv.1706.03750 · pith_short_12: A6N4POTYLWST · pith_short_16: A6N4POTYLWSTWTAY · pith_short_8: A6N4POTY

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/A6N4POTYLWSTWTAYKWXUVUEKZP \
  | 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: 079bc7ba785da53b4c1855af4ad08acbf8c6ec4240d1734813b7238a109f6c98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9da5e2bda1dd1db43880e582ec495ab5453625ced87294d50458d80dad3062a",
    "cross_cats_sorted": [
      "cs.CC",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-06-12T17:36:36Z",
    "title_canon_sha256": "921e932bade48d6ce2c3c4ee164fa87f661b393cc9bff453120642ec29d0906d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.03750",
    "kind": "arxiv",
    "version": 1
  }
}