Pith Number

pith:33AG3Y5G

pith:2016:33AG3Y5GXVT3HWGX5EKX4XJBR2

not attested not anchored not stored refs pending

Helly $\mathbf{EPT}$ graphs on bounded degree trees: forbidden induced subgraphs and efficient recognition

Liliana Alc\'on, Mar\'ia P\'ia Mazzoleni, Marisa Gutierrez

arxiv:1604.08775 v1 · 2016-04-29 · 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{33AG3Y5GXVT3HWGX5EKX4XJBR2}

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	2026-05-18T01:16:01.813637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dec06de3a6bd67b3d8d7e9157e5d218ebb5c0246ed1cb5470c24d99a6cc37360

Aliases

arxiv: 1604.08775 · arxiv_version: 1604.08775v1 · doi: 10.48550/arxiv.1604.08775 · pith_short_12: 33AG3Y5GXVT3 · pith_short_16: 33AG3Y5GXVT3HWGX · pith_short_8: 33AG3Y5G

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/33AG3Y5GXVT3HWGX5EKX4XJBR2 \
  | 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: dec06de3a6bd67b3d8d7e9157e5d218ebb5c0246ed1cb5470c24d99a6cc37360

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94b368c8933bf8212174cf881284387a717adf6d2b18dd49b3cdc0877a7072df",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-04-29T11:11:22Z",
    "title_canon_sha256": "ad7f428b3f58abe77a31dd38c2862979e3312c482cf0e2e0bdc23f98c00f9c59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08775",
    "kind": "arxiv",
    "version": 1
  }
}