Pith Number

pith:BAHT2ACK

pith:2015:BAHT2ACKEAF7NURCU7EPWSXQKZ

not attested not anchored not stored refs pending

Decompositions of a polygon into centrally symmetric pieces

J\'ulia Frittmann, Zsolt L\'angi

arxiv:1504.05418 v2 · 2015-04-21 · math.MG · 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{BAHT2ACKEAF7NURCU7EPWSXQKZ}

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	2026-05-18T01:21:13.407664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

080f3d004a200bf6d222a7c8fb4af0564be7597899689c422951be5588ae10ee

Aliases

arxiv: 1504.05418 · arxiv_version: 1504.05418v2 · doi: 10.48550/arxiv.1504.05418 · pith_short_12: BAHT2ACKEAF7 · pith_short_16: BAHT2ACKEAF7NURC · pith_short_8: BAHT2ACK

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/BAHT2ACKEAF7NURCU7EPWSXQKZ \
  | 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: 080f3d004a200bf6d222a7c8fb4af0564be7597899689c422951be5588ae10ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "305ab1531d43778a142bd5815381624dbe2c516faaa53e2d90ac588b27ad4c89",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2015-04-21T13:16:09Z",
    "title_canon_sha256": "d7a9c23ec329f6780907b7ac0c1b1a64b5123509f1f09f5c23df1470c76cb8db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05418",
    "kind": "arxiv",
    "version": 2
  }
}