Pith Number

pith:CAV35RYH

pith:2013:CAV35RYHFTSW67KNZERJQ42A7O

not attested not anchored not stored refs pending

Tree-width and Logspace: Determinants and Counting Euler Tours

Nikhil Balaji, Samir Datta

arxiv:1312.7468 v2 · 2013-12-28 · cs.CC · cs.DS · 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{CAV35RYHFTSW67KNZERJQ42A7O}

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	2026-05-18T03:03:31.379596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

102bbec7072ce56f7d4dc922987340fbb0e2a123a6662449979df4e8a9560212

Aliases

arxiv: 1312.7468 · arxiv_version: 1312.7468v2 · doi: 10.48550/arxiv.1312.7468 · pith_short_12: CAV35RYHFTSW · pith_short_16: CAV35RYHFTSW67KN · pith_short_8: CAV35RYH

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/CAV35RYHFTSW67KNZERJQ42A7O \
  | 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: 102bbec7072ce56f7d4dc922987340fbb0e2a123a6662449979df4e8a9560212

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "915532663642d55e158c53d9156e337ecbb1d6d184087d6298589b0b24d7f7d9",
    "cross_cats_sorted": [
      "cs.DS",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-12-28T19:59:01Z",
    "title_canon_sha256": "18d5dbab0e9809cef40bbfef120a1349f53cfa4fb328e881b32cfaee2a5ddbb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.7468",
    "kind": "arxiv",
    "version": 2
  }
}