Pith Number

pith:CX3P4LZN

pith:2020:CX3P4LZNAIDUDRDJ64FMFQ2IMP

not attested not anchored not stored refs pending

String graphs have the Erd\H{o}s-Hajnal property

Istv\'an Tomon

arxiv:2002.10350 v1 · 2020-02-24 · 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{CX3P4LZNAIDUDRDJ64FMFQ2IMP}

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.

Cited by

1 paper in Pith

Induced subgraph density. IV. New graphs with the Erd\H{o}s-Hajnal property

Receipt and verification

First computed	2026-07-05T00:43:16.749400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15f6fe2f2d020741c469f70ac2c34863c7615a12f7698e8aadb084589d889e41

Aliases

arxiv: 2002.10350 · arxiv_version: 2002.10350v1 · doi: 10.48550/arxiv.2002.10350 · pith_short_12: CX3P4LZNAIDU · pith_short_16: CX3P4LZNAIDUDRDJ · pith_short_8: CX3P4LZN

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/CX3P4LZNAIDUDRDJ64FMFQ2IMP \
  | 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: 15f6fe2f2d020741c469f70ac2c34863c7615a12f7698e8aadb084589d889e41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a343ea90a16f5e0c6104cf420ca1abc30e80d520385f2bf22c4e55bd68818fe9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2020-02-24T16:23:21Z",
    "title_canon_sha256": "7c1d27b141af6ef5010060dd73f1deaca10133318d53e8d913690b30e0e0675f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.10350",
    "kind": "arxiv",
    "version": 1
  }
}