Pith Number

pith:62DMJJYB

pith:2013:62DMJJYBCZ32SYGX6WDDVQ6UPZ

not attested not anchored not stored refs pending

Hardness of Finding Independent Sets in 2-Colorable Hypergraphs and of Satisfiable CSPs

Rishi Saket

arxiv:1312.2915 v1 · 2013-12-10 · 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{62DMJJYBCZ32SYGX6WDDVQ6UPZ}

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	2026-05-18T03:05:08.052817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f686c4a7011677a960d7f5863ac3d47e7e8b6c72c47c542c2d2f187cf9b40cef

Aliases

arxiv: 1312.2915 · arxiv_version: 1312.2915v1 · doi: 10.48550/arxiv.1312.2915 · pith_short_12: 62DMJJYBCZ32 · pith_short_16: 62DMJJYBCZ32SYGX · pith_short_8: 62DMJJYB

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/62DMJJYBCZ32SYGX6WDDVQ6UPZ \
  | 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: f686c4a7011677a960d7f5863ac3d47e7e8b6c72c47c542c2d2f187cf9b40cef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d765e830de9d88a802b9b6f8b1ab11f809ed05b86ed6025e5b8d4bac360e935",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-12-10T19:04:24Z",
    "title_canon_sha256": "9a28e628ea8f68ccd23aa943adab389af922e6213a383a84edec1d3a6e525cc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2915",
    "kind": "arxiv",
    "version": 1
  }
}