Pith Number

pith:IVXWA4DC

pith:2014:IVXWA4DCXU7NQSDQAWOD754YQF

not attested not anchored not stored refs pending

Large induced forests in planar graphs with girth 4 or 5

Alexandre Pinlou, Fran\c{c}ois Dross, Mickael Montassier

arxiv:1409.1348 v1 · 2014-09-04 · 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{IVXWA4DCXU7NQSDQAWOD754YQF}

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	2026-05-18T02:43:27.165152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

456f607062bd3ed84870059c3ff798814dfe19a4dc7e7ae62c153c4f57d6065c

Aliases

arxiv: 1409.1348 · arxiv_version: 1409.1348v1 · doi: 10.48550/arxiv.1409.1348 · pith_short_12: IVXWA4DCXU7N · pith_short_16: IVXWA4DCXU7NQSDQ · pith_short_8: IVXWA4DC

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/IVXWA4DCXU7NQSDQAWOD754YQF \
  | 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: 456f607062bd3ed84870059c3ff798814dfe19a4dc7e7ae62c153c4f57d6065c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07a2f713b29ddc3c9e863666dc38f574085a5f39d6e46793330594f3f7f0ea72",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2014-09-04T07:51:15Z",
    "title_canon_sha256": "ae7cc53d0104dc102458c253e4c20041f857920c3b44b93fa8eb589092bedaba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.1348",
    "kind": "arxiv",
    "version": 1
  }
}