Pith Number

pith:WN3WQTVK

pith:2013:WN3WQTVKSLL6U72ZQ76TIVEUGR

not attested not anchored not stored refs pending

Indecomposable coverings with homothetic polygons

Istv\'an Kov\'acs

arxiv:1312.4597 v2 · 2013-12-17 · cs.CG · math.CO · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WN3WQTVKSLL6U72ZQ76TIVEUGR}

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	2026-05-18T02:24:28.786839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b377684eaa92d7ea7f5987fd345494344f232a5266e0ef63653342e2af1fe241

Aliases

arxiv: 1312.4597 · arxiv_version: 1312.4597v2 · doi: 10.48550/arxiv.1312.4597 · pith_short_12: WN3WQTVKSLL6 · pith_short_16: WN3WQTVKSLL6U72Z · pith_short_8: WN3WQTVK

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/WN3WQTVKSLL6U72ZQ76TIVEUGR \
  | 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: b377684eaa92d7ea7f5987fd345494344f232a5266e0ef63653342e2af1fe241

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18cd25f82435e92faf5aea2570678cdfdc2161d0ff132c527e4785470a916143",
    "cross_cats_sorted": [
      "math.CO",
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-12-17T00:22:08Z",
    "title_canon_sha256": "336d41f45e1115e136bcf604a12e37723d527d13e1be1b647424e5b6dde6333f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.4597",
    "kind": "arxiv",
    "version": 2
  }
}