Pith Number

pith:JVCY2VD4

pith:2011:JVCY2VD4CAXVRDMMVT7W7SCRGW

not attested not anchored not stored refs pending

Finite connectivity in infinite matroids

Henning Bruhn, Paul Wollan

arxiv:1101.5621 v1 · 2011-01-28 · 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{JVCY2VD4CAXVRDMMVT7W7SCRGW}

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	2026-05-18T04:30:34.649110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d458d547c102f588d8cacff6fc85135bdb22c429e831fc66eefa357d84549b9

Aliases

arxiv: 1101.5621 · arxiv_version: 1101.5621v1 · doi: 10.48550/arxiv.1101.5621 · pith_short_12: JVCY2VD4CAXV · pith_short_16: JVCY2VD4CAXVRDMM · pith_short_8: JVCY2VD4

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/JVCY2VD4CAXVRDMMVT7W7SCRGW \
  | 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: 4d458d547c102f588d8cacff6fc85135bdb22c429e831fc66eefa357d84549b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57cd25aa6854d5664245dc5943b4902ce4e47cb9b3545bb57e1e56c7632c1336",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-01-28T20:52:59Z",
    "title_canon_sha256": "1d8e9e7731399d965d35aa161e6d9989aec3dfc7fcfc87e160db411c47674b03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.5621",
    "kind": "arxiv",
    "version": 1
  }
}