Pith Number

pith:RSDGPJLB

pith:2013:RSDGPJLBMH2P57UKMNBW4ZCFKI

not attested not anchored not stored refs pending

Contracting Graphs to Split Graphs and Threshold Graphs

Chengwei Guo, Leizhen Cai

arxiv:1310.5786 v1 · 2013-10-22 · 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{RSDGPJLBMH2P57UKMNBW4ZCFKI}

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	2026-05-18T03:09:32.324756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c8667a56161f4fefe8a63436e644552234c308890d3bd08bbc8cb706dc56e81

Aliases

arxiv: 1310.5786 · arxiv_version: 1310.5786v1 · doi: 10.48550/arxiv.1310.5786 · pith_short_12: RSDGPJLBMH2P · pith_short_16: RSDGPJLBMH2P57UK · pith_short_8: RSDGPJLB

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/RSDGPJLBMH2P57UKMNBW4ZCFKI \
  | 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: 8c8667a56161f4fefe8a63436e644552234c308890d3bd08bbc8cb706dc56e81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "242d34b4f3b0cc28578ee882b02cb705ae66a701f99df285112d60bfaf90cc1b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-10-22T03:01:41Z",
    "title_canon_sha256": "14c2ca9d3eaa9f4982839b669e49e36efb7c7d6dedd0e1ddf1d981c0e8148660"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.5786",
    "kind": "arxiv",
    "version": 1
  }
}