Pith Number

pith:F36QJPOP

pith:2019:F36QJPOPFXQVHUIVH6SV4ZGHKD

not attested not anchored not stored refs pending

The Hamiltonicity, Hamiltonian Connectivity, and Longest (s, t)-path of L-shaped Supergrid Graphs

Fatemeh Keshavarz-Kohjerdi, Ruo-Wei Hung

arxiv:1904.02581 v2 · 2019-04-04 · cs.DM · 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{F36QJPOPFXQVHUIVH6SV4ZGHKD}

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	2026-05-17T23:47:01.492686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2efd04bdcf2de153d1153fa55e64c750e2f9e802056064d93d62fd2b975a07ed

Aliases

arxiv: 1904.02581 · arxiv_version: 1904.02581v2 · doi: 10.48550/arxiv.1904.02581 · pith_short_12: F36QJPOPFXQV · pith_short_16: F36QJPOPFXQVHUIV · pith_short_8: F36QJPOP

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/F36QJPOPFXQVHUIVH6SV4ZGHKD \
  | 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: 2efd04bdcf2de153d1153fa55e64c750e2f9e802056064d93d62fd2b975a07ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2aac27abc0da2542d1ab10958085e56f88d3a4614ab84c908fdb459be260a9bc",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2019-04-04T14:32:48Z",
    "title_canon_sha256": "0860b710195d2b488079431b6c79e1082a920ae29c4470e4a51e804d0baa797f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.02581",
    "kind": "arxiv",
    "version": 2
  }
}