Pith Number

pith:HRXWD4ZR

pith:2018:HRXWD4ZRF7EIRSQXFEIVJEHF6W

not attested not anchored not stored refs pending

Finite point configurations in the plane, rigidity and Erdos problems

A. Iosevich, J. Passant

arxiv:1805.08065 v1 · 2018-05-17 · 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{HRXWD4ZRF7EIRSQXFEIVJEHF6W}

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	2026-05-18T00:15:31.811683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c6f61f3312fc888ca1729115490e5f5bbe55bdf97f475fd261ae65bf691c892

Aliases

arxiv: 1805.08065 · arxiv_version: 1805.08065v1 · doi: 10.48550/arxiv.1805.08065 · pith_short_12: HRXWD4ZRF7EI · pith_short_16: HRXWD4ZRF7EIRSQX · pith_short_8: HRXWD4ZR

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/HRXWD4ZRF7EIRSQXFEIVJEHF6W \
  | 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: 3c6f61f3312fc888ca1729115490e5f5bbe55bdf97f475fd261ae65bf691c892

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c25e7645f2377a704cf5281ca20011e2bd519c22ff09a3f47d5a097debaa902e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-17T19:05:00Z",
    "title_canon_sha256": "708a98d5bdb20311af1ccc9c96c23d2ead727d55757751f560c3fd122e363503"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08065",
    "kind": "arxiv",
    "version": 1
  }
}