Pith Number

pith:32AIGLAU

pith:2012:32AIGLAU3QF2XVZEDMKVIIFORF

not attested not anchored not stored refs pending

On two classes of nearly binary matroids

James Oxley, Jesse Taylor

arxiv:1205.0522 v4 · 2012-05-02 · 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{32AIGLAU3QF2XVZEDMKVIIFORF}

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	2026-05-18T03:17:25.018642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de80832c14dc0babd7241b155420ae897771c595369835bc4bc9035079989621

Aliases

arxiv: 1205.0522 · arxiv_version: 1205.0522v4 · doi: 10.48550/arxiv.1205.0522 · pith_short_12: 32AIGLAU3QF2 · pith_short_16: 32AIGLAU3QF2XVZE · pith_short_8: 32AIGLAU

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/32AIGLAU3QF2XVZEDMKVIIFORF \
  | 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: de80832c14dc0babd7241b155420ae897771c595369835bc4bc9035079989621

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dfe67dfbcd412f3e88f27ad0ec24e64a015601a695445c4558b70587e1d5b55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-05-02T18:51:09Z",
    "title_canon_sha256": "c93a7b8bcd12df18e37c0007631d7198add468754d14ea16e9683a2149d3b426"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0522",
    "kind": "arxiv",
    "version": 4
  }
}