Pith Number

pith:6BHXCYXU

pith:2015:6BHXCYXU3SD77OVZRDBP5IW3GP

not attested not anchored not stored refs pending

The Hamilton-Waterloo Problem with $C_4$ and $C_m$ Factors

Sibel \"Ozkan, U\u{g}ur Odaba\c{s}{\i}

arxiv:1505.08121 v1 · 2015-05-29 · 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{6BHXCYXU3SD77OVZRDBP5IW3GP}

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	2026-05-18T01:59:59.625307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f04f7162f4dc87ffbab988c2fea2db33e70f4a9c2da402c2fdfb94728834c35e

Aliases

arxiv: 1505.08121 · arxiv_version: 1505.08121v1 · doi: 10.48550/arxiv.1505.08121 · pith_short_12: 6BHXCYXU3SD7 · pith_short_16: 6BHXCYXU3SD77OVZ · pith_short_8: 6BHXCYXU

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/6BHXCYXU3SD77OVZRDBP5IW3GP \
  | 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: f04f7162f4dc87ffbab988c2fea2db33e70f4a9c2da402c2fdfb94728834c35e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d47ed0684b2b277eada7791a1786ff2f623a9e06ae9e9e323e2aa928e2e3693f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-05-29T17:43:15Z",
    "title_canon_sha256": "085530666481dc520c2b853124ffad703053c0a2918e6ee7ca0675d014289578"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.08121",
    "kind": "arxiv",
    "version": 1
  }
}