Pith Number

pith:F3ZWP7GD

pith:2017:F3ZWP7GDCO4WZGZU5Q6NULFX3G

not attested not anchored not stored refs pending

On strongly chordal graphs that are not leaf powers

Manuel Lafond

arxiv:1703.08018 v3 · 2017-03-23 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F3ZWP7GDCO4WZGZU5Q6NULFX3G}

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	2026-05-18T00:41:07.206336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ef367fcc313b96c9b34ec3cda2cb7d9abf4b17c59f689ef0306bf7ffcc5ec01

Aliases

arxiv: 1703.08018 · arxiv_version: 1703.08018v3 · doi: 10.48550/arxiv.1703.08018 · pith_short_12: F3ZWP7GDCO4W · pith_short_16: F3ZWP7GDCO4WZGZU · pith_short_8: F3ZWP7GD

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/F3ZWP7GDCO4WZGZU5Q6NULFX3G \
  | 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: 2ef367fcc313b96c9b34ec3cda2cb7d9abf4b17c59f689ef0306bf7ffcc5ec01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f25ba69c7add19fbe51d1c8f19269bf8fcad3ba7007db6a347e2b5feb9a96317",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-03-23T11:43:26Z",
    "title_canon_sha256": "9e58eccf1b7d98508328528572e405c4664d689598fb412c80a5e4787b87ae53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.08018",
    "kind": "arxiv",
    "version": 3
  }
}