Pith Number

pith:C2AYWQQ2

pith:2011:C2AYWQQ2DBCRZ7M57CIT7556ZH

not attested not anchored not stored refs pending

A new approach to an old problem of Erdos and Moser

Hoi H. Nguyen

arxiv:1112.0755 v1 · 2011-12-04 · 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{C2AYWQQ2DBCRZ7M57CIT7556ZH}

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	2026-05-18T04:07:05.707646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16818b421a18451cfd9df8913ff7bec9e8a42dc6a6b5a6da3a4354d9f8317c33

Aliases

arxiv: 1112.0755 · arxiv_version: 1112.0755v1 · doi: 10.48550/arxiv.1112.0755 · pith_short_12: C2AYWQQ2DBCR · pith_short_16: C2AYWQQ2DBCRZ7M5 · pith_short_8: C2AYWQQ2

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/C2AYWQQ2DBCRZ7M57CIT7556ZH \
  | 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: 16818b421a18451cfd9df8913ff7bec9e8a42dc6a6b5a6da3a4354d9f8317c33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "122596f11ac4354f6e14b6ccec638c071e9a492ef1efb880a3c1a4f6c5bfd6cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-12-04T14:13:14Z",
    "title_canon_sha256": "f30bbc21c113f32595bc230304eb11870a5cda8ac8a451edc5c8096facb53641"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0755",
    "kind": "arxiv",
    "version": 1
  }
}