Pith Number

pith:6ZJCT7BC

pith:2020:6ZJCT7BCGGBIBVTGWMLZ5DNRB2

not attested not anchored not stored refs pending

On the proper orientation number of chordal graphs

Alexandre Cezar, Ana Silva, Carlos V.G.C. Lima, Julio Araujo, Vinicius F. dos Santos

arxiv:2011.14719 v1 · 2020-11-30 · cs.CC · cs.DM · 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{6ZJCT7BCGGBIBVTGWMLZ5DNRB2}

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	2026-07-05T01:55:22.731537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f65229fc22318280d666b3179e8db10ead1315c056de18682cda70251da8385e

Aliases

arxiv: 2011.14719 · arxiv_version: 2011.14719v1 · doi: 10.48550/arxiv.2011.14719 · pith_short_12: 6ZJCT7BCGGBI · pith_short_16: 6ZJCT7BCGGBIBVTG · pith_short_8: 6ZJCT7BC

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/6ZJCT7BCGGBIBVTGWMLZ5DNRB2 \
  | 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: f65229fc22318280d666b3179e8db10ead1315c056de18682cda70251da8385e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eeab4596eb2f826707468ec06c53e105502a404924e8ba3c501e6016104b07a9",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2020-11-30T12:01:57Z",
    "title_canon_sha256": "c51b2e87b969014fb9ba80111d5ff0ce3058b533f5f0d579a72d188d75b09f51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.14719",
    "kind": "arxiv",
    "version": 1
  }
}