Pith Number

pith:RKPGIZ2Y

pith:2016:RKPGIZ2YUTWGBLEJVXLLFXNFPI

not attested not anchored not stored refs pending

Independent sets in the union of two Hamiltonian cycles

Daniel Solt\'esz, Ron Aharoni

arxiv:1609.09746 v1 · 2016-09-30 · 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{RKPGIZ2YUTWGBLEJVXLLFXNFPI}

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	2026-05-18T01:03:33.529069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a9e646758a4ec60ac89add6b2dda57a358b4e774f2e3f2c55ea6371065d162b

Aliases

arxiv: 1609.09746 · arxiv_version: 1609.09746v1 · doi: 10.48550/arxiv.1609.09746 · pith_short_12: RKPGIZ2YUTWG · pith_short_16: RKPGIZ2YUTWGBLEJ · pith_short_8: RKPGIZ2Y

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/RKPGIZ2YUTWGBLEJVXLLFXNFPI \
  | 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: 8a9e646758a4ec60ac89add6b2dda57a358b4e774f2e3f2c55ea6371065d162b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6839450e61695bb6e6694fa7befa979d0b35d1ed1a480a792ecf56c49568d8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-09-30T14:19:35Z",
    "title_canon_sha256": "ecb1aca751101f1c148382316fea48ddbf2efb4fc8b2ca9a11d0ae3a1c8e6a33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.09746",
    "kind": "arxiv",
    "version": 1
  }
}