Pith Number

pith:2HYINVM5

pith:2015:2HYINVM5X4VGZSEEX2RUXTKDOY

not attested not anchored not stored refs pending

Critical and Maximum Independent Sets of a Graph

Adi Jarden, Eugen Mandrescu, Vadim E. Levit

arxiv:1506.00255 v1 · 2015-05-31 · cs.DM · 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{2HYINVM5X4VGZSEEX2RUXTKDOY}

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	2026-05-18T01:59:55.063527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1f086d59dbf2a6cc884bea34bcd43760143260cfe4db8e9ffd0fed7dc57f533

Aliases

arxiv: 1506.00255 · arxiv_version: 1506.00255v1 · doi: 10.48550/arxiv.1506.00255 · pith_short_12: 2HYINVM5X4VG · pith_short_16: 2HYINVM5X4VGZSEE · pith_short_8: 2HYINVM5

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/2HYINVM5X4VGZSEEX2RUXTKDOY \
  | 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: d1f086d59dbf2a6cc884bea34bcd43760143260cfe4db8e9ffd0fed7dc57f533

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "305128b6db2b1bc7d696d937a5dce7f891a9456a9816dd96bde63ae3fc8d71d0",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-05-31T17:02:01Z",
    "title_canon_sha256": "e523fab4de0228d2a488b9f80596384c4dcdce710c8292e8fbd6fcea424d5249"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.00255",
    "kind": "arxiv",
    "version": 1
  }
}