Pith Number

pith:G3WZX7JS

pith:2009:G3WZX7JS3GTQWESHBTWDI4UPED

not attested not anchored not stored refs pending

Binary Non-tiles

Don Coppersmith, Victor S. Miller

arxiv:0911.1388 v2 · 2009-11-07 · cs.DM · cs.IT · math.CO · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G3WZX7JS3GTQWESHBTWDI4UPED}

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	2026-05-18T04:16:32.309676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36ed9bfd32d9a70b12470cec34728f20eb760ddc74dab6350709eb8a7dc5ab7b

Aliases

arxiv: 0911.1388 · arxiv_version: 0911.1388v2 · doi: 10.48550/arxiv.0911.1388 · pith_short_12: G3WZX7JS3GTQ · pith_short_16: G3WZX7JS3GTQWESH · pith_short_8: G3WZX7JS

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/G3WZX7JS3GTQWESHBTWDI4UPED \
  | 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: 36ed9bfd32d9a70b12470cec34728f20eb760ddc74dab6350709eb8a7dc5ab7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18bf1e24612da1d7127837b826845b0cb34bad96a6999a304b211d3779db6b78",
    "cross_cats_sorted": [
      "cs.IT",
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2009-11-07T03:25:40Z",
    "title_canon_sha256": "7d9888d375c5f55c043d9c42e915a22ce80fb4e4d322954eab33d7a41dbf5b78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1388",
    "kind": "arxiv",
    "version": 2
  }
}