Pith Number

pith:IVK2KRTA

pith:2015:IVK2KRTA2WHORCLCT3NZRHUDWC

not attested not anchored not stored refs pending

On the zone of a circle in an arrangement of lines

Gabriel Nivasch

arxiv:1503.03462 v6 · 2015-03-11 · 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{IVK2KRTA2WHORCLCT3NZRHUDWC}

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	2026-05-18T00:51:58.409530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4555a54660d58ee889629edb989e83b0946c35d211b0f39e6eb40c5fff28f1a1

Aliases

arxiv: 1503.03462 · arxiv_version: 1503.03462v6 · doi: 10.48550/arxiv.1503.03462 · pith_short_12: IVK2KRTA2WHO · pith_short_16: IVK2KRTA2WHORCLC · pith_short_8: IVK2KRTA

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/IVK2KRTA2WHORCLCT3NZRHUDWC \
  | 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: 4555a54660d58ee889629edb989e83b0946c35d211b0f39e6eb40c5fff28f1a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7fed7bb6e991b58fcdf2df2c3fdf9563820368accaa06493083dde1d785da48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-03-11T19:36:59Z",
    "title_canon_sha256": "5b16fc5ee18a9fc50e8867a12a5e1341b1424eac80e6113ab76d540e4c8cd8aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03462",
    "kind": "arxiv",
    "version": 6
  }
}