Pith Number

pith:BTJZUSKL

pith:2011:BTJZUSKLQILLFL3S6Z7CAR73LC

not attested not anchored not stored refs pending

New Representations of Matroids and Generalizations

John Rhodes, Zur Izhakian

arxiv:1103.0503 v1 · 2011-03-02 · math.CO · math.AC · math.AT · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTJZUSKLQILLFL3S6Z7CAR73LC}

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	2026-05-18T04:27:34.741065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cd39a494b8216b2af72f67e2047fb58a732f2d575ebc9e51ff49c97055fbc2b

Aliases

arxiv: 1103.0503 · arxiv_version: 1103.0503v1 · doi: 10.48550/arxiv.1103.0503 · pith_short_12: BTJZUSKLQILL · pith_short_16: BTJZUSKLQILLFL3S · pith_short_8: BTJZUSKL

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/BTJZUSKLQILLFL3S6Z7CAR73LC \
  | 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: 0cd39a494b8216b2af72f67e2047fb58a732f2d575ebc9e51ff49c97055fbc2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2522b08134c6524aeda5110b119c8120dea4337eefae703eeeb4ba3115b937ac",
    "cross_cats_sorted": [
      "math.AC",
      "math.AT",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-03-02T17:55:24Z",
    "title_canon_sha256": "7d8e7c628adf65c7817eaa2a8943ffadde38d8a7b2dcb7186ca93db96bf51a74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.0503",
    "kind": "arxiv",
    "version": 1
  }
}