Pith Number

pith:CO6OYPBL

pith:2013:CO6OYPBLYOC27TNUNQXE6UU2S6

not attested not anchored not stored refs pending

Hardness of Finding Independent Sets in 2-Colorable and Almost 2-Colorable Hypergraphs

Rishi Saket, Subhash Khot

arxiv:1308.3247 v2 · 2013-08-14 · 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{CO6OYPBLYOC27TNUNQXE6UU2S6}

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	2026-05-18T03:11:12.649269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13bcec3c2bc385afcdb46c2e4f529a97adef0e8d03b0d802393d95dd9b96080a

Aliases

arxiv: 1308.3247 · arxiv_version: 1308.3247v2 · doi: 10.48550/arxiv.1308.3247 · pith_short_12: CO6OYPBLYOC2 · pith_short_16: CO6OYPBLYOC27TNU · pith_short_8: CO6OYPBL

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/CO6OYPBLYOC27TNUNQXE6UU2S6 \
  | 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: 13bcec3c2bc385afcdb46c2e4f529a97adef0e8d03b0d802393d95dd9b96080a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99e0ee632edd129a2bad5849b846db8452e0d26e659024a0d292e16acd070957",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-08-14T20:34:05Z",
    "title_canon_sha256": "f81b5691fd8b9c1a51ec96b1d846250fb87248d5ca9738425791f63b5128ebb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.3247",
    "kind": "arxiv",
    "version": 2
  }
}