Pith Number

pith:EYKBTD5Y

pith:2017:EYKBTD5Y7TPRW5OQ4Z5FCAV3AH

not attested not anchored not stored refs pending

Matroids and Canonical Forms: Theory and Applications

Gregory Henselman-Petrusek

arxiv:1710.06084 v3 · 2017-10-17 · math.CT · math.AT · math.CO · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EYKBTD5Y7TPRW5OQ4Z5FCAV3AH}

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	2026-07-05T00:55:54.189288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2614198fb8fcdf1b75d0e67a5102bb01f23ff0af99fd2f66f42eaa169307d5cc

Aliases

arxiv: 1710.06084 · arxiv_version: 1710.06084v3 · doi: 10.48550/arxiv.1710.06084 · pith_short_12: EYKBTD5Y7TPR · pith_short_16: EYKBTD5Y7TPRW5OQ · pith_short_8: EYKBTD5Y

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/EYKBTD5Y7TPRW5OQ4Z5FCAV3AH \
  | 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: 2614198fb8fcdf1b75d0e67a5102bb01f23ff0af99fd2f66f42eaa169307d5cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00e151d1bdc02a553b84d42358aa7fd95679185766496c00663f2e0c02f4aaf7",
    "cross_cats_sorted": [
      "math.AT",
      "math.CO",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2017-10-17T04:16:42Z",
    "title_canon_sha256": "9843645cc753238fd707f857a195e2a85a4afe79fdd51a5134c2648a6993eda9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.06084",
    "kind": "arxiv",
    "version": 3
  }
}