Pith Number

pith:CBKGOOJB

pith:2015:CBKGOOJBZL4DV3U3TCVDYDJ34V

not attested not anchored not stored refs pending

Fixed-parameter Tractable Distances to Sparse Graph Classes

Anuj Dawar, Jannis Bulian

arxiv:1502.05910 v1 · 2015-02-20 · cs.DS · cs.CC · cs.DM · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CBKGOOJBZL4DV3U3TCVDYDJ34V}

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	2026-05-18T02:26:44.523627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1054673921caf83aee9b98aa3c0d3be56d5c1a2bd5f0e17c68ce747e3c7cd3e7

Aliases

arxiv: 1502.05910 · arxiv_version: 1502.05910v1 · doi: 10.48550/arxiv.1502.05910 · pith_short_12: CBKGOOJBZL4D · pith_short_16: CBKGOOJBZL4DV3U3 · pith_short_8: CBKGOOJB

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/CBKGOOJBZL4DV3U3TCVDYDJ34V \
  | 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: 1054673921caf83aee9b98aa3c0d3be56d5c1a2bd5f0e17c68ce747e3c7cd3e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1cdc52ab4715d6634b82cce47cf47008fa05f043b80af2aeef28498f026f20b7",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM",
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-02-20T15:44:17Z",
    "title_canon_sha256": "1ae03a9b1e956630b842bc828c7d896da6f3faf65e2dff9167f9eb6d717ed040"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05910",
    "kind": "arxiv",
    "version": 1
  }
}