Pith Number

pith:35FBGNO2

pith:2014:35FBGNO23TJDO4RPRCWBOLFBR7

not attested not anchored not stored refs pending

The matching energy of graphs with given edge connectivity

Hongping Ma, Shengjin Ji

arxiv:1405.1601 v1 · 2014-05-07 · 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{35FBGNO23TJDO4RPRCWBOLFBR7}

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	2026-05-18T02:52:24.383611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df4a1335dadcd237722f88ac172ca18fe3679279e85b062734133967c1c08ab6

Aliases

arxiv: 1405.1601 · arxiv_version: 1405.1601v1 · doi: 10.48550/arxiv.1405.1601 · pith_short_12: 35FBGNO23TJD · pith_short_16: 35FBGNO23TJDO4RP · pith_short_8: 35FBGNO2

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/35FBGNO23TJDO4RPRCWBOLFBR7 \
  | 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: df4a1335dadcd237722f88ac172ca18fe3679279e85b062734133967c1c08ab6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87ba9311517744cde0e579a69d5f4a6ec2466bd45e3abb1cf77ec2f75fbc0af0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-05-07T13:34:42Z",
    "title_canon_sha256": "b3c5e2a4c73cf4c7f1f8652e4145383cb97c7d20372bb1cdab5069be3dbd02ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.1601",
    "kind": "arxiv",
    "version": 1
  }
}