Pith Number

pith:NWGJOFG3

pith:2019:NWGJOFG3VZ3W5H52SC5DBW3W46

not attested not anchored not stored refs pending

Finding Hamiltonian and Longest (s, t)-paths of C-shaped Supergrid Graphs in Linear Time

Fatemeh Keshavarz-Kohjerdi, Ruo-Wei Hung

arxiv:1908.07447 v1 · 2019-08-17 · cs.CC · 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{NWGJOFG3VZ3W5H52SC5DBW3W46}

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	2026-07-04T23:58:35.171710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d8c9714dbae776e9fba90ba30db76e7813b6234070229716bf762b2bfcd2c71

Aliases

arxiv: 1908.07447 · arxiv_version: 1908.07447v1 · doi: 10.48550/arxiv.1908.07447 · pith_short_12: NWGJOFG3VZ3W · pith_short_16: NWGJOFG3VZ3W5H52 · pith_short_8: NWGJOFG3

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/NWGJOFG3VZ3W5H52SC5DBW3W46 \
  | 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: 6d8c9714dbae776e9fba90ba30db76e7813b6234070229716bf762b2bfcd2c71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d700a4b490838982a772d418aed08bbdbef4f952758afd2b6c683f0d111aef6c",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-08-17T11:41:39Z",
    "title_canon_sha256": "5d108870342323319200a9d0fd762f71e451d54540ae05ff2c4cd0dc6aad0bf3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07447",
    "kind": "arxiv",
    "version": 1
  }
}