Pith Number

pith:WL5UHSUY

pith:2017:WL5UHSUYKF7D27BYRCQBWN4MLF

not attested not anchored not stored refs pending

A Tight Lower Bound for Counting Hamiltonian Cycles via Matrix Rank

Jesper Nederlof, Nathan Lindzey, Radu Curticapean

arxiv:1709.02311 v2 · 2017-09-07 · cs.DS · cs.CC · math.CO · math.RT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WL5UHSUYKF7D27BYRCQBWN4MLF}

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	2026-05-18T00:30:00.173604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2fb43ca98517e3d7c3888a01b378c5969440218342d6b81eddbb92eef2aee7c

Aliases

arxiv: 1709.02311 · arxiv_version: 1709.02311v2 · doi: 10.48550/arxiv.1709.02311 · pith_short_12: WL5UHSUYKF7D · pith_short_16: WL5UHSUYKF7D27BY · pith_short_8: WL5UHSUY

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/WL5UHSUYKF7D27BYRCQBWN4MLF \
  | 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: b2fb43ca98517e3d7c3888a01b378c5969440218342d6b81eddbb92eef2aee7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49def50da08ce3ef3e6c3d11ca7a656a9e5f278a364d9f0dfeb5762ef1720d32",
    "cross_cats_sorted": [
      "cs.CC",
      "math.CO",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-09-07T15:29:11Z",
    "title_canon_sha256": "f5d74ba6e61a65988fb48c7e79edaa787ff18103934e9c5bc67dd843e18247e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02311",
    "kind": "arxiv",
    "version": 2
  }
}