Pith Number

pith:AYPPBJXL

pith:2011:AYPPBJXLN36354DUZVTQ3POVYR

not attested not anchored not stored refs pending

Calculating ellipse overlap areas

Gary B. Hughes, Mohcine Chraibi

arxiv:1106.3787 v1 · 2011-06-19 · physics.comp-ph · 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{AYPPBJXLN36354DUZVTQ3POVYR}

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	2026-05-18T04:19:42.144513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

061ef0a6eb6efdbef074cd670dbdd5c474833aeb4c53fbb30e6072cdf5a53d20

Aliases

arxiv: 1106.3787 · arxiv_version: 1106.3787v1 · doi: 10.48550/arxiv.1106.3787 · pith_short_12: AYPPBJXLN363 · pith_short_16: AYPPBJXLN36354DU · pith_short_8: AYPPBJXL

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/AYPPBJXLN36354DUZVTQ3POVYR \
  | 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: 061ef0a6eb6efdbef074cd670dbdd5c474833aeb4c53fbb30e6072cdf5a53d20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fee9a9530b31e96171947be0cfdfd3fb656c82e8d7dc4e188b37a68bf6e27fed",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2011-06-19T22:27:32Z",
    "title_canon_sha256": "1aac6346821ff851563ef1c6b350247972d4b8d9a8ba692e6779ba3112283a48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.3787",
    "kind": "arxiv",
    "version": 1
  }
}