Pith Number

pith:A5TYGRYI

pith:2011:A5TYGRYI4IUP633SQJOCCY2UPC

not attested not anchored not stored refs pending

Approximation Algorithms for Digraph Width Parameters

Akash Kumar, Nishad Kothari, Shiva Kintali

arxiv:1107.4824 v2 · 2011-07-25 · 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{A5TYGRYI4IUP633SQJOCCY2UPC}

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	2026-05-18T03:34:35.893585Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0767834708e228ff6f72825c21635478822e66e2f3795fc37560353b33eacbd5

Aliases

arxiv: 1107.4824 · arxiv_version: 1107.4824v2 · doi: 10.48550/arxiv.1107.4824 · pith_short_12: A5TYGRYI4IUP · pith_short_16: A5TYGRYI4IUP633S · pith_short_8: A5TYGRYI

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/A5TYGRYI4IUP633SQJOCCY2UPC \
  | 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: 0767834708e228ff6f72825c21635478822e66e2f3795fc37560353b33eacbd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e111d0fb1bc62d35bf384106ba5bf125289e10531724ee2bd07c799e0fdb657",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-07-25T01:58:42Z",
    "title_canon_sha256": "4f8c23dd3c1804b01de1e90956eccb3292eb48ecddb903e1f2fe9e09ca44117e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4824",
    "kind": "arxiv",
    "version": 2
  }
}