Pith Number

pith:6JN3OA2J

pith:2013:6JN3OA2JOU5BWMJTTDHEEWDUMA

not attested not anchored not stored refs pending

Characterizing [h,2,1] graphs by minimal forbidden induced subgraphs

Liliana Alc\'on, Mar\'ia P\'ia Mazzoleni, Marisa Gutierrez

arxiv:1307.2139 v1 · 2013-07-08 · 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{6JN3OA2JOU5BWMJTTDHEEWDUMA}

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	2026-05-18T03:19:02.307347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f25bb70349753a1b313398ce4258746035ff71406fdb680cc30a85df762baa87

Aliases

arxiv: 1307.2139 · arxiv_version: 1307.2139v1 · doi: 10.48550/arxiv.1307.2139 · pith_short_12: 6JN3OA2JOU5B · pith_short_16: 6JN3OA2JOU5BWMJT · pith_short_8: 6JN3OA2J

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/6JN3OA2JOU5BWMJTTDHEEWDUMA \
  | 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: f25bb70349753a1b313398ce4258746035ff71406fdb680cc30a85df762baa87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d23978db43f2227f4b7338a0b45f79f851183c490ac2738e398d7b6d73e42f64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-07-08T16:03:52Z",
    "title_canon_sha256": "55b37dbef6d489c89573ed3bf4d29df726a05da84e553e622c5dc8a2ff24a50d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2139",
    "kind": "arxiv",
    "version": 1
  }
}