Pith Number

pith:WD3TTK6Z

pith:2018:WD3TTK6ZEUMO6FLISZSIL2TQD2

not attested not anchored not stored refs pending

Connectivity of single-element coextensions of a binary matroid

Ganesh Mundhe, Y. M. Borse

arxiv:1812.01218 v1 · 2018-12-04 · 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{WD3TTK6ZEUMO6FLISZSIL2TQD2}

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	2026-05-17T23:59:13.099791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0f739abd92518ef1568966485ea701ebac545c0383a89463535deca93984760

Aliases

arxiv: 1812.01218 · arxiv_version: 1812.01218v1 · doi: 10.48550/arxiv.1812.01218 · pith_short_12: WD3TTK6ZEUMO · pith_short_16: WD3TTK6ZEUMO6FLI · pith_short_8: WD3TTK6Z

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/WD3TTK6ZEUMO6FLISZSIL2TQD2 \
  | 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: b0f739abd92518ef1568966485ea701ebac545c0383a89463535deca93984760

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e43f9ab9a30d7518d903ad595f91231e99e4ff80057975cb9b64ef3a21e14848",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-12-04T05:06:42Z",
    "title_canon_sha256": "633f0a321f969f1526448c8fe38968245d56a0d633359b9bcf9151c9175f0ac7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.01218",
    "kind": "arxiv",
    "version": 1
  }
}