Pith Number

pith:WBIVFRHA

pith:2018:WBIVFRHA2NHA5ABXUIQMMKCY3F

not attested not anchored not stored refs pending

Characterization of general position sets and its applications to cographs and bipartite graphs

Bijo S. Anand, Elias John Thomas, Manoj Changat, Sandi Klav\v{z}ar, Ullas Chandran S. V.

arxiv:1812.08460 v2 · 2018-12-20 · 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{WBIVFRHA2NHA5ABXUIQMMKCY3F}

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	2026-05-17T23:48:31.104641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b05152c4e0d34e0e8037a220c62858d947ac65458c11261edc9f7751b5c15981

Aliases

arxiv: 1812.08460 · arxiv_version: 1812.08460v2 · doi: 10.48550/arxiv.1812.08460 · pith_short_12: WBIVFRHA2NHA · pith_short_16: WBIVFRHA2NHA5ABX · pith_short_8: WBIVFRHA

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/WBIVFRHA2NHA5ABXUIQMMKCY3F \
  | 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: b05152c4e0d34e0e8037a220c62858d947ac65458c11261edc9f7751b5c15981

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f613f662646ee4ce9f2497420c130528e7262931e555e8cb840f049cacc740ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-12-20T10:16:54Z",
    "title_canon_sha256": "aa197c13b7de3ad85ea531da87403af3c2e678216bab4c4794490fa60c7cc891"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.08460",
    "kind": "arxiv",
    "version": 2
  }
}