Pith Number

pith:MOV7NBZG

pith:2013:MOV7NBZG3TMLHEAMIAU2SOAKA7

not attested not anchored not stored refs pending

A Note on the Unsolvability of the Weighted Region Shortest Path Problem

Anil Maheshwari, Carsten Grimm, Jean-Lou De Carufel, Megan Owen, Michiel Smid

arxiv:1305.5209 v1 · 2013-05-22 · cs.CG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MOV7NBZG3TMLHEAMIAU2SOAKA7}

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	2026-05-18T03:25:06.533742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63abf68726dcd8b3900c4029a9380a07c38a674916051e35ce65b50602eab2eb

Aliases

arxiv: 1305.5209 · arxiv_version: 1305.5209v1 · doi: 10.48550/arxiv.1305.5209 · pith_short_12: MOV7NBZG3TML · pith_short_16: MOV7NBZG3TMLHEAM · pith_short_8: MOV7NBZG

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/MOV7NBZG3TMLHEAMIAU2SOAKA7 \
  | 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: 63abf68726dcd8b3900c4029a9380a07c38a674916051e35ce65b50602eab2eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a931261f77e4e3d57b7c001fd3dcba38c1722c7de486d86dcd10cbaa68b7bca0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-05-22T17:53:29Z",
    "title_canon_sha256": "ee12b54ed1800056e92898702c1f42269969143c16fee22430975f2b864fade8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.5209",
    "kind": "arxiv",
    "version": 1
  }
}