Pith Number

pith:URQX66TU

pith:2015:URQX66TU442RC5GXWKQI4JYCAC

not attested not anchored not stored refs pending

The Maximum Cardinality Cut Problem is Polynomial in Proper Interval Graphs

Arman Boyac{\i}, Mordechai Shalom, Tinaz Ekim

arxiv:1512.06893 v1 · 2015-12-21 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{URQX66TU442RC5GXWKQI4JYCAC}

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	2026-05-18T01:23:53.541627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4617f7a74e7351174d7b2a08e27020093105ec988b640dc12fa5f22dfb9dfd0

Aliases

arxiv: 1512.06893 · arxiv_version: 1512.06893v1 · doi: 10.48550/arxiv.1512.06893 · pith_short_12: URQX66TU442R · pith_short_16: URQX66TU442RC5GX · pith_short_8: URQX66TU

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/URQX66TU442RC5GXWKQI4JYCAC \
  | 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: a4617f7a74e7351174d7b2a08e27020093105ec988b640dc12fa5f22dfb9dfd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e58b05dae0e434e8fd06e149a7a812aef01a587e8b1c0f0f3ef90e252414608e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-12-21T22:24:12Z",
    "title_canon_sha256": "90f3354a8bd85c72afe18f21e523d22c1179304b3ce7191063561753b1ec1655"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.06893",
    "kind": "arxiv",
    "version": 1
  }
}