Pith Number

pith:R7U4NYMY

pith:2018:R7U4NYMYMFWZSRRJ2RUQ34T522

not attested not anchored not stored refs pending

The minimum number of Hamilton cycles in a hamiltonian threshold graph of a prescribed order

Pu Qiao, Xingzhi Zhan

arxiv:1802.09250 v1 · 2018-02-26 · 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{R7U4NYMYMFWZSRRJ2RUQ34T522}

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	2026-05-18T00:22:34.280972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fe9c6e198616d994629d4690df27dd6a3f9b54c512e4d71520f60fe26856a96

Aliases

arxiv: 1802.09250 · arxiv_version: 1802.09250v1 · doi: 10.48550/arxiv.1802.09250 · pith_short_12: R7U4NYMYMFWZ · pith_short_16: R7U4NYMYMFWZSRRJ · pith_short_8: R7U4NYMY

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/R7U4NYMYMFWZSRRJ2RUQ34T522 \
  | 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: 8fe9c6e198616d994629d4690df27dd6a3f9b54c512e4d71520f60fe26856a96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f039463c6aca0018701884ac74d19009314aecf1a27d7c6268cc6515c9eab86e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-02-26T11:29:49Z",
    "title_canon_sha256": "925c0034e0ca5ad4d085066dff6eac3ca07fb9d90f235d4f8353d829055c3184"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.09250",
    "kind": "arxiv",
    "version": 1
  }
}