Pith Number

pith:3RGXC2P7

pith:2022:3RGXC2P7CFDIWB2J3UM37TKUTR

not attested not anchored not stored refs pending

Catching Polygons

Anna Schenfisch, Bradley McCoy, Eli Quist

arxiv:2201.01286 v1 · 2022-01-04 · 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{3RGXC2P7CFDIWB2J3UM37TKUTR}

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	2026-07-05T03:45:59.519567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc4d7169ff11468b0749dd19bfcd549c788e7db8c5e65a1890207ddd44da7e1b

Aliases

arxiv: 2201.01286 · arxiv_version: 2201.01286v1 · doi: 10.48550/arxiv.2201.01286 · pith_short_12: 3RGXC2P7CFDI · pith_short_16: 3RGXC2P7CFDIWB2J · pith_short_8: 3RGXC2P7

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/3RGXC2P7CFDIWB2J3UM37TKUTR \
  | 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: dc4d7169ff11468b0749dd19bfcd549c788e7db8c5e65a1890207ddd44da7e1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f69467e66177a1debe42fe70548bb917c33c4216cdf112bc6463f7eec4ed4cd1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2022-01-04T18:29:03Z",
    "title_canon_sha256": "47c415bfa4f946a96649b0e006537c04663734dfd97da603a958542cfd185533"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.01286",
    "kind": "arxiv",
    "version": 1
  }
}