Pith Number

pith:FEZ7RQA7

pith:2026:FEZ7RQA76QK347JAFL4FLQ5EYO

not attested not anchored not stored refs pending

Counting Hamiltonian paths between prescribed vertices in traceable graphs with a forbidden induced subgraph

Carol T. Zamfirescu, Jorik Jooken

arxiv:2606.02279 v1 · 2026-06-01 · 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{FEZ7RQA76QK347JAFL4FLQ5EYO}

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	2026-06-02T03:04:54.922259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2933f8c01ff415be7d202af855c3a4c38a5626031bf493c253fc8c4a2913a889

Aliases

arxiv: 2606.02279 · arxiv_version: 2606.02279v1 · doi: 10.48550/arxiv.2606.02279 · pith_short_12: FEZ7RQA76QK3 · pith_short_16: FEZ7RQA76QK347JA · pith_short_8: FEZ7RQA7

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/FEZ7RQA76QK347JAFL4FLQ5EYO \
  | 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: 2933f8c01ff415be7d202af855c3a4c38a5626031bf493c253fc8c4a2913a889

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5d1afbfc1584ecd99861600259ef3ad03bb1e4c806c3b68decc4bd5f2ebf397",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-06-01T14:03:31Z",
    "title_canon_sha256": "303207df38c7774de8c64b76c26b3ac7af4b06ea81b62cab8e0696bd5ece4a3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.02279",
    "kind": "arxiv",
    "version": 1
  }
}