Pith Number

pith:OX3PLYV2

pith:2005:OX3PLYV2GCDZHB4LIB3IUA2VWO

not attested not anchored not stored refs pending

A polynomial algorithm for the k-cluster problem on interval graphs

George B. Mertzios

arxiv:cs/0512046 v3 · 2005-12-11 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OX3PLYV2GCDZHB4LIB3IUA2VWO}

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	2026-05-18T04:08:54.144885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75f6f5e2ba308793878b40768a0355b3b266097829cc557ff4391ed88ad734ee

Aliases

arxiv: cs/0512046 · arxiv_version: cs/0512046v3 · doi: 10.48550/arxiv.cs/0512046 · pith_short_12: OX3PLYV2GCDZ · pith_short_16: OX3PLYV2GCDZHB4L · pith_short_8: OX3PLYV2

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/OX3PLYV2GCDZHB4LIB3IUA2VWO \
  | 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: 75f6f5e2ba308793878b40768a0355b3b266097829cc557ff4391ed88ad734ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5edbbc4ebb336edff0e71e20641291995b75e97526ac07f1fce8dbf6ac24394",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.DS",
    "submitted_at": "2005-12-11T23:13:44Z",
    "title_canon_sha256": "496cecb473fe908143b1b450cb27bc23767b1a146ff0be846562bd6501e8ad59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0512046",
    "kind": "arxiv",
    "version": 3
  }
}