Pith Number

pith:JFTIFY7Z

pith:2013:JFTIFY7Z7CSTJJVNLTHIM5UTE5

not attested not anchored not stored refs pending

Regular independent sets

Adriana Hansberg, Ryan Pepper, Yair Caro

arxiv:1306.5026 v3 · 2013-06-21 · 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{JFTIFY7Z7CSTJJVNLTHIM5UTE5}

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	2026-05-18T02:29:53.283101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

496682e3f9f8a534a6ad5cce867693274cace8f71fa3522ecf3115aee1caa409

Aliases

arxiv: 1306.5026 · arxiv_version: 1306.5026v3 · doi: 10.48550/arxiv.1306.5026 · pith_short_12: JFTIFY7Z7CST · pith_short_16: JFTIFY7Z7CSTJJVN · pith_short_8: JFTIFY7Z

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/JFTIFY7Z7CSTJJVNLTHIM5UTE5 \
  | 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: 496682e3f9f8a534a6ad5cce867693274cace8f71fa3522ecf3115aee1caa409

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dddf644164687e157e30416a9d547f0c6e16cf4522c791d159e7b23ab3a012ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-06-21T00:23:31Z",
    "title_canon_sha256": "189c130bf3c2a4ce42d26f4d7d69b44559244fd4640d3c00fcbc611cba70d87a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5026",
    "kind": "arxiv",
    "version": 3
  }
}