Pith Number

pith:ACP37JTC

pith:2012:ACP37JTCQDX6XMJTZ2OC6PWLJ5

not attested not anchored not stored refs pending

New Ramsey Classes from Old

Manuel Bodirsky

arxiv:1204.3258 v2 · 2012-04-15 · math.LO · 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{ACP37JTCQDX6XMJTZ2OC6PWLJ5}

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	2026-05-18T03:50:48.363621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

009fbfa66280efebb133ce9c2f3ecb4f6c67b536856dd959d45e7c82579b0858

Aliases

arxiv: 1204.3258 · arxiv_version: 1204.3258v2 · doi: 10.48550/arxiv.1204.3258 · pith_short_12: ACP37JTCQDX6 · pith_short_16: ACP37JTCQDX6XMJT · pith_short_8: ACP37JTC

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/ACP37JTCQDX6XMJTZ2OC6PWLJ5 \
  | 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: 009fbfa66280efebb133ce9c2f3ecb4f6c67b536856dd959d45e7c82579b0858

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fc7b65e7689c6f58ffb9ac4f07c011aa011fbaf35eab02f6f00c6dbf7955e71",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2012-04-15T11:44:12Z",
    "title_canon_sha256": "c55e1011431980da4764d90833df0ab26364fbdc0b069cfa5d2b4c4cddf77b9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3258",
    "kind": "arxiv",
    "version": 2
  }
}