Pith Number

pith:WHBLOUOR

pith:2010:WHBLOUOROQPQA5BXLCOJNUL2TE

not attested not anchored not stored refs pending

Bounded Search Tree Algorithms for Parameterized Cograph Deletion: Efficient Branching Rules by Exploiting Structures of Special Graph Classes

James Nastos, Yong Gao

arxiv:1006.3020 v2 · 2010-06-15 · cs.DM · 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{WHBLOUOROQPQA5BXLCOJNUL2TE}

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	2026-05-18T02:06:53.276148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1c2b751d1741f007437589c96d17a993971a5c95027bba7e4ee7e2aff301675

Aliases

arxiv: 1006.3020 · arxiv_version: 1006.3020v2 · doi: 10.48550/arxiv.1006.3020 · pith_short_12: WHBLOUOROQPQ · pith_short_16: WHBLOUOROQPQA5BX · pith_short_8: WHBLOUOR

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/WHBLOUOROQPQA5BXLCOJNUL2TE \
  | 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: b1c2b751d1741f007437589c96d17a993971a5c95027bba7e4ee7e2aff301675

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b543f386bf7811922c64bb3f53bce0020efc47298f3798b6a2f53b53ac5cdc27",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2010-06-15T16:03:13Z",
    "title_canon_sha256": "d24e5f89a24cf464b4a87abaff71b3dd5104b9d5c20979882713800eb8085524"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.3020",
    "kind": "arxiv",
    "version": 2
  }
}