Pith Number

pith:R7F2MOXM

pith:2013:R7F2MOXMZAWJ2MRTD5LD3S7YSV

not attested not anchored not stored refs pending

Facets for Art Gallery Problems

Alexander Kr\"oller, Christiane Schmidt, S\'andor P. Fekete, Stephan Friedrichs

arxiv:1308.4670 v2 · 2013-08-21 · cs.CG · cs.DS · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R7F2MOXMZAWJ2MRTD5LD3S7YSV}

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	2026-05-18T02:31:02.444946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fcba63aecc82c9d32331f563dcbf89579e3e1ed202cdc854fa0399df26dfb23

Aliases

arxiv: 1308.4670 · arxiv_version: 1308.4670v2 · doi: 10.48550/arxiv.1308.4670 · pith_short_12: R7F2MOXMZAWJ · pith_short_16: R7F2MOXMZAWJ2MRT · pith_short_8: R7F2MOXM

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/R7F2MOXMZAWJ2MRTD5LD3S7YSV \
  | 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: 8fcba63aecc82c9d32331f563dcbf89579e3e1ed202cdc854fa0399df26dfb23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d0885456f1981108752417390ac33eacfecb612c8d0747172a614e650d6829f",
    "cross_cats_sorted": [
      "cs.DS",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-08-21T19:32:06Z",
    "title_canon_sha256": "00240d52e8e7bcd9cb70bd318dd2bbea64f65c788d1a7a0b019f1452f56e2055"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4670",
    "kind": "arxiv",
    "version": 2
  }
}