Pith Number

pith:2NGAH2EB

pith:2013:2NGAH2EBC675B2ESI6CAFU7KLA

not attested not anchored not stored refs pending

Finding an induced subdivision of a digraph

Fr\'ed\'eric Havet, J{\o}rgen Bang-Jensen, Nicolas Trotignon

arxiv:1309.1553 v1 · 2013-09-06 · 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{2NGAH2EBC675B2ESI6CAFU7KLA}

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	2026-05-18T01:18:19.624518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d34c03e88117bfd0e892478402d3ea580df4239ed4f0ae1d71b6c522b18c8c66

Aliases

arxiv: 1309.1553 · arxiv_version: 1309.1553v1 · doi: 10.48550/arxiv.1309.1553 · pith_short_12: 2NGAH2EBC675 · pith_short_16: 2NGAH2EBC675B2ES · pith_short_8: 2NGAH2EB

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/2NGAH2EBC675B2ESI6CAFU7KLA \
  | 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: d34c03e88117bfd0e892478402d3ea580df4239ed4f0ae1d71b6c522b18c8c66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a56163e2ea92ab521ba5510beded23e5d215731d01addc5d06c61d741df665fe",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2013-09-06T07:19:51Z",
    "title_canon_sha256": "38ab4ea936a1342b9cda1225bb9400120f04decf621c011c79b5a108142d765d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1553",
    "kind": "arxiv",
    "version": 1
  }
}