Pith Number

pith:NY5EX3VW

pith:2024:NY5EX3VWAVR45QDTWF2WKRJC5F

not attested not anchored not stored refs pending

Extremal Problems on Forest Cuts and Acyclic Neighborhoods in Sparse Graphs

C. G. Fernandes, C. M. Sato, E. F. de Figueiredo, F. Botler, R. G\'omez, V. F. dos Santos, Y. S. Couto

arxiv:2411.17885 v2 · 2024-11-26 · math.CO · 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{NY5EX3VWAVR45QDTWF2WKRJC5F}

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	2026-07-05T11:09:44.227823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e3a4beeb60563cec073b175654522e975b35c47aeed3ff4c242249a062e4d51

Aliases

arxiv: 2411.17885 · arxiv_version: 2411.17885v2 · doi: 10.48550/arxiv.2411.17885 · pith_short_12: NY5EX3VWAVR4 · pith_short_16: NY5EX3VWAVR45QDT · pith_short_8: NY5EX3VW

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/NY5EX3VWAVR45QDTWF2WKRJC5F \
  | 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: 6e3a4beeb60563cec073b175654522e975b35c47aeed3ff4c242249a062e4d51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db3261da13aa35ad5e5b7fcc9d5630035723480f0fb380a7ddad03cf5e93fe70",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2024-11-26T21:12:34Z",
    "title_canon_sha256": "3737ef66efba33f7c24edf3e72875d999bd8068808126cd575fda05ecc25af9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2411.17885",
    "kind": "arxiv",
    "version": 2
  }
}