Pith Number

pith:TLCSE5PH

pith:2016:TLCSE5PH4M3YYLYMIRQ3EFLMTW

not attested not anchored not stored refs pending

The Erd\"os-Hajnal Conjecture---A Survey

Maria Chudnovsky

arxiv:1606.08827 v1 · 2016-06-28 · 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{TLCSE5PH4M3YYLYMIRQ3EFLMTW}

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	2026-05-18T01:11:47.071680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ac52275e7e3378c2f0c4461b2156c9d8af62832f84bf516b6e835693b470a99

Aliases

arxiv: 1606.08827 · arxiv_version: 1606.08827v1 · doi: 10.48550/arxiv.1606.08827 · pith_short_12: TLCSE5PH4M3Y · pith_short_16: TLCSE5PH4M3YYLYM · pith_short_8: TLCSE5PH

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/TLCSE5PH4M3YYLYMIRQ3EFLMTW \
  | 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: 9ac52275e7e3378c2f0c4461b2156c9d8af62832f84bf516b6e835693b470a99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8860fc3f6218ecbfa6d9b75158d537a198cb368b146b8994c57b500f1d4b8749",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-06-28T19:07:32Z",
    "title_canon_sha256": "1cec1a572321c615044b0b0b38a44bd3f6ce8c916f69bb71ea9ed588db593ce9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.08827",
    "kind": "arxiv",
    "version": 1
  }
}