Pith Number

pith:OCGPBRV3

pith:2018:OCGPBRV3LP4MTCCY75CYGUNZPN

not attested not anchored not stored refs pending

On a reduction of the weighted induced bipartite subgraph problem to the weighted independent set problem

Shinji Mizuno, Yotaro Takazawa

arxiv:1807.10277 v1 · 2018-07-25 · cs.DM · 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{OCGPBRV3LP4MTCCY75CYGUNZPN}

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	2026-05-18T00:09:41.105149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

708cf0c6bb5bf8c98858ff458351b97b45d5519ec0b04f91e8d38161adb9bc4a

Aliases

arxiv: 1807.10277 · arxiv_version: 1807.10277v1 · doi: 10.48550/arxiv.1807.10277 · pith_short_12: OCGPBRV3LP4M · pith_short_16: OCGPBRV3LP4MTCCY · pith_short_8: OCGPBRV3

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/OCGPBRV3LP4MTCCY75CYGUNZPN \
  | 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: 708cf0c6bb5bf8c98858ff458351b97b45d5519ec0b04f91e8d38161adb9bc4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6116fbb7c90a2fa351a5ee0c0907e3d4d242d7e7de7aa4ca79576956b10824df",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-07-25T23:32:50Z",
    "title_canon_sha256": "b04141107ff69b4ee240e045b8ae5adae34f84c4e7f36a5916bfc575738e467d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.10277",
    "kind": "arxiv",
    "version": 1
  }
}