Pith Number

pith:FCQZI3AH

pith:2011:FCQZI3AHW4LUSVZX3C52MO7QU2

not attested not anchored not stored refs pending

The Computational Complexity of Disconnected Cut and 2K2-Partition

Barnaby Martin, Daniel Paulusma

arxiv:1104.4779 v3 · 2011-04-25 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FCQZI3AHW4LUSVZX3C52MO7QU2}

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	2026-05-18T02:39:09.397543Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28a1946c07b717495737d8bba63bf0a6880d79245262454f21e80d7337faaa1b

Aliases

arxiv: 1104.4779 · arxiv_version: 1104.4779v3 · doi: 10.48550/arxiv.1104.4779 · pith_short_12: FCQZI3AHW4LU · pith_short_16: FCQZI3AHW4LUSVZX · pith_short_8: FCQZI3AH

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/FCQZI3AHW4LUSVZX3C52MO7QU2 \
  | 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: 28a1946c07b717495737d8bba63bf0a6880d79245262454f21e80d7337faaa1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39f62dbf32a5613a29f048880b5e787c1d1dbe7b37b6a0f1cc81bebd284bb637",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2011-04-25T19:49:40Z",
    "title_canon_sha256": "d3834eca93ccab9f32a81f8814a3409ec266ffdd5eded47c6e75e1d7154cb0ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4779",
    "kind": "arxiv",
    "version": 3
  }
}