Pith Number

pith:OPSTGFNP

pith:2014:OPSTGFNPSNMH4I6DZMVVPJAUD7

not attested not anchored not stored refs pending

Isomorphism of Weighted Trees and Stanley's Conjecture for Caterpillars

Jean-S\'ebastien Sereni, Martin Loebl

arxiv:1405.4132 v4 · 2014-05-16 · 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{OPSTGFNPSNMH4I6DZMVVPJAUD7}

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	2026-05-18T00:13:22.374095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73e53315af93587e23c3cb2b57a4141fef0590f95557bf8b86178b8a41d9b59c

Aliases

arxiv: 1405.4132 · arxiv_version: 1405.4132v4 · doi: 10.48550/arxiv.1405.4132 · pith_short_12: OPSTGFNPSNMH · pith_short_16: OPSTGFNPSNMH4I6D · pith_short_8: OPSTGFNP

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/OPSTGFNPSNMH4I6DZMVVPJAUD7 \
  | 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: 73e53315af93587e23c3cb2b57a4141fef0590f95557bf8b86178b8a41d9b59c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75f2f269c37dc95671e36e17bb529f3258431b3100977bba89f06484367d7037",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-05-16T11:33:28Z",
    "title_canon_sha256": "27fecb4808d8988bd6bd832e7831db0106cadc4938a762d7d7c58ec607ef5d1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4132",
    "kind": "arxiv",
    "version": 4
  }
}