Pith Number

pith:LHFC74B3

pith:2019:LHFC74B3ZVEFVF4E4OW2FBAQDX

not attested not anchored not stored refs pending

Matching points with disks with a common intersection

Carlos Seara, Clemens Huemer, Pablo P\'erez-Lantero, Rodrigo I. Silveira

arxiv:1902.08427 v1 · 2019-02-22 · cs.CG · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LHFC74B3ZVEFVF4E4OW2FBAQDX}

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	2026-05-17T23:52:57.247569Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59ca2ff03bcd485a9784e3ada284101dcbfbad1e6f29ae601f70481ffb24aa1d

Aliases

arxiv: 1902.08427 · arxiv_version: 1902.08427v1 · doi: 10.48550/arxiv.1902.08427 · pith_short_12: LHFC74B3ZVEF · pith_short_16: LHFC74B3ZVEFVF4E · pith_short_8: LHFC74B3

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/LHFC74B3ZVEFVF4E4OW2FBAQDX \
  | 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: 59ca2ff03bcd485a9784e3ada284101dcbfbad1e6f29ae601f70481ffb24aa1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "633ea067b9201d40a2c2af42c6c952668d1b577bdddc76f835181295b7b824eb",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-02-22T10:34:11Z",
    "title_canon_sha256": "08f3c7a8680ff32cb4084983d72717b1caa35f5aa669530344a04e9cfdb21f51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08427",
    "kind": "arxiv",
    "version": 1
  }
}