Pith Number

pith:7CMJVZ3P

pith:2008:7CMJVZ3PP5DG3QFU2ZXEE46TSR

not attested not anchored not stored refs pending

Superfilters, Ramsey theory, and van der Waerden's Theorem

Boaz Tsaban, Nadav Samet

arxiv:0808.1654 v3 · 2008-08-12 · math.CO · math.DS · math.GN

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7CMJVZ3PP5DG3QFU2ZXEE46TSR}

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	2026-05-18T04:15:04.963360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8989ae76f7f466dc0b4d66e4273d3944dae68e0937317fd4a193614d7b50e19

Aliases

arxiv: 0808.1654 · arxiv_version: 0808.1654v3 · doi: 10.48550/arxiv.0808.1654 · pith_short_12: 7CMJVZ3PP5DG · pith_short_16: 7CMJVZ3PP5DG3QFU · pith_short_8: 7CMJVZ3P

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/7CMJVZ3PP5DG3QFU2ZXEE46TSR \
  | 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: f8989ae76f7f466dc0b4d66e4273d3944dae68e0937317fd4a193614d7b50e19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edd90efbba7ea046f38eaadf63eadff9226782604e3d28e0a2d43a30ec78ac10",
    "cross_cats_sorted": [
      "math.DS",
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2008-08-12T13:31:22Z",
    "title_canon_sha256": "cc8302eb5253852df6939745d486faf7a47d1afe144834ba7bd9f6494d4a42ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.1654",
    "kind": "arxiv",
    "version": 3
  }
}