Pith Number

pith:I7WVR2Q7

pith:2012:I7WVR2Q7XISFATCW7I7PVLRWAX

not attested not anchored not stored refs pending

Hamiltonian Cycles in the Square of a Graph

Jan Ekstein

arxiv:1206.4846 v1 · 2012-06-21 · 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{I7WVR2Q7XISFATCW7I7PVLRWAX}

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	2026-05-18T03:30:13.955083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47ed58ea1fba24504c56fa3efaae3605f198a75ac063f7e064e939dbf1f5e8b8

Aliases

arxiv: 1206.4846 · arxiv_version: 1206.4846v1 · doi: 10.48550/arxiv.1206.4846 · pith_short_12: I7WVR2Q7XISF · pith_short_16: I7WVR2Q7XISFATCW · pith_short_8: I7WVR2Q7

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/I7WVR2Q7XISFATCW7I7PVLRWAX \
  | 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: 47ed58ea1fba24504c56fa3efaae3605f198a75ac063f7e064e939dbf1f5e8b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f95beeb6369cc32ac5a977e85fda4555fccbd9a368d6257eda3452f5a8af8603",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-06-21T11:57:48Z",
    "title_canon_sha256": "fff4a84d980a5451a0bddee4ecbf1d2aa4e99b3320dcc6b0c9d91cafde88448f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.4846",
    "kind": "arxiv",
    "version": 1
  }
}