Pith Number

pith:LHA5LCCU

pith:2019:LHA5LCCUICQ3WCUGHNG6EMFXHR

not attested not anchored not stored refs pending

A Best Possible Result for the Square of a 2-Block to be Hamiltonian

Herbert Fleischner, Jan Ekstein

arxiv:1906.01723 v1 · 2019-06-04 · 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{LHA5LCCUICQ3WCUGHNG6EMFXHR}

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	2026-05-17T23:44:06.451429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59c1d5885440a1bb0a863b4de230b73c70f943ed98fbc1cdf060b18888df429d

Aliases

arxiv: 1906.01723 · arxiv_version: 1906.01723v1 · doi: 10.48550/arxiv.1906.01723 · pith_short_12: LHA5LCCUICQ3 · pith_short_16: LHA5LCCUICQ3WCUG · pith_short_8: LHA5LCCU

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/LHA5LCCUICQ3WCUGHNG6EMFXHR \
  | 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: 59c1d5885440a1bb0a863b4de230b73c70f943ed98fbc1cdf060b18888df429d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "589fbafd7b3d2b5327527529624cf8a8922624d5723dfacba0c689d6132f49b0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-06-04T20:56:57Z",
    "title_canon_sha256": "8dc1beecae28653db6e048c5da0d390e1b5f267d37a1044a00d94956fc71ac02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.01723",
    "kind": "arxiv",
    "version": 1
  }
}