Pith Number

pith:XALO56AR

pith:2013:XALO56ARKHAFI3BHBULXEOHQMA

not attested not anchored not stored refs pending

Binary matroids and local complementation

Lorenzo Traldi

arxiv:1301.4946 v6 · 2013-01-21 · 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{XALO56ARKHAFI3BHBULXEOHQMA}

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	2026-05-18T02:38:17.378138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b816eef81151c0546c270d177238f06034cbc83f0032536c175d91726f68a6ff

Aliases

arxiv: 1301.4946 · arxiv_version: 1301.4946v6 · doi: 10.48550/arxiv.1301.4946 · pith_short_12: XALO56ARKHAF · pith_short_16: XALO56ARKHAFI3BH · pith_short_8: XALO56AR

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/XALO56ARKHAFI3BHBULXEOHQMA \
  | 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: b816eef81151c0546c270d177238f06034cbc83f0032536c175d91726f68a6ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46a4f5786e7f8495f58a24fa49f37182a5ac43e65014e45a081cdb16ddd652b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-01-21T18:23:51Z",
    "title_canon_sha256": "e6457cebbefeb83ed5dce95b046a5aae4672fb44df259a5ba94f1df883226bf3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4946",
    "kind": "arxiv",
    "version": 6
  }
}