Pith Number

pith:7CBYLNIV

pith:2019:7CBYLNIV6HHMPZ6SEPEILUZI4G

not attested not anchored not stored refs pending

Constructing Arbitrarily Large Graphs with a Specified Number of Hamiltonian Cycles

Michael Haythorpe

arxiv:1902.10351 v1 · 2019-02-27 · 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{7CBYLNIV6HHMPZ6SEPEILUZI4G}

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	2026-05-17T23:52:31.101242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f88385b515f1cec7e7d223c885d328e1bb0be890e68f4de902f42e341c2671c7

Aliases

arxiv: 1902.10351 · arxiv_version: 1902.10351v1 · doi: 10.48550/arxiv.1902.10351 · pith_short_12: 7CBYLNIV6HHM · pith_short_16: 7CBYLNIV6HHMPZ6S · pith_short_8: 7CBYLNIV

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/7CBYLNIV6HHMPZ6SEPEILUZI4G \
  | 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: f88385b515f1cec7e7d223c885d328e1bb0be890e68f4de902f42e341c2671c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "044aca5296bb114b8268e18ffc7aa64e929078d32b1cd552333233b8f2ddb633",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-02-27T06:26:03Z",
    "title_canon_sha256": "11c04ec947370a7df7c753ba279ede78762c7aefa55106d0addab1f5cecb2634"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10351",
    "kind": "arxiv",
    "version": 1
  }
}