Pith Number

pith:6LFZ52D2

pith:2013:6LFZ52D24CT7ZTJ2O2UNLN6MSR

not attested not anchored not stored refs pending

Drawing the double circle on a grid of minimum size

David Flores-Pe\~naloza, Mario Lopez, Pablo P\'erez-Lantero, Ruy Fabila-Monroy, Sergey Bereg

arxiv:1305.6693 v1 · 2013-05-29 · cs.CG · 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{6LFZ52D24CT7ZTJ2O2UNLN6MSR}

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	2026-05-18T03:22:18.089189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2cb9ee87ae0a7fccd3a76a8d5b7cc945033e181f42e76ed1f7ada3f1cff0780

Aliases

arxiv: 1305.6693 · arxiv_version: 1305.6693v1 · doi: 10.48550/arxiv.1305.6693 · pith_short_12: 6LFZ52D24CT7 · pith_short_16: 6LFZ52D24CT7ZTJ2 · pith_short_8: 6LFZ52D2

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/6LFZ52D24CT7ZTJ2O2UNLN6MSR \
  | 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: f2cb9ee87ae0a7fccd3a76a8d5b7cc945033e181f42e76ed1f7ada3f1cff0780

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cf185877a4d114f4cac84304eccedb553a5820f33723bc5ef222ae65ba93c97",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-05-29T04:56:57Z",
    "title_canon_sha256": "f09581ca29b28dfd4e7e8b1ad15df14a067b4a15cd90530d2098e827167390e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.6693",
    "kind": "arxiv",
    "version": 1
  }
}