Pith Number

pith:7DD5FF5W

pith:2009:7DD5FF5WJ6RZJ4CI37YORV3WH3

not attested not anchored not stored refs pending

Short Cycle Covers of Cubic Graphs and Graphs with Minimum Degree Three

Bernard Lidicky, Daniel Kral, Pavel Nejedly, Robert Samal, Tomas Kaiser

arxiv:0908.1423 v1 · 2009-08-11 · 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{7DD5FF5WJ6RZJ4CI37YORV3WH3}

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	2026-05-18T00:40:42.312857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8c7d297b64fa394f048dff0e8d7763ec55da438d7cdf1c7277c8a8d95752c1c

Aliases

arxiv: 0908.1423 · arxiv_version: 0908.1423v1 · doi: 10.48550/arxiv.0908.1423 · pith_short_12: 7DD5FF5WJ6RZ · pith_short_16: 7DD5FF5WJ6RZJ4CI · pith_short_8: 7DD5FF5W

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/7DD5FF5WJ6RZJ4CI37YORV3WH3 \
  | 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: f8c7d297b64fa394f048dff0e8d7763ec55da438d7cdf1c7277c8a8d95752c1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a08cda4d402121223e721164de6ed25395fcc8d5939e6294abacb868229f53a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2009-08-11T00:33:22Z",
    "title_canon_sha256": "5c8050ef0ba816da9b4face1b0142462921102aa15c67c2148bc780ab4f3ec16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1423",
    "kind": "arxiv",
    "version": 1
  }
}