Pith Number

pith:ZNDKPYLX

pith:2019:ZNDKPYLXPVYU4A2TI65VNH5NTK

not attested not anchored not stored refs pending

Closed-form solutions for tilted three-part piecewise-quadratic half-plane contacts

David A. Hills, Hendrik Andresen, Jesus Vazquez

arxiv:1902.08044 v1 · 2019-02-20 · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZNDKPYLXPVYU4A2TI65VNH5NTK}

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	2026-05-17T23:53:02.325413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb46a7e1777d714e035347bb569fad9a8be660cd1f6b6bbab0ee4bf46638fcbf

Aliases

arxiv: 1902.08044 · arxiv_version: 1902.08044v1 · doi: 10.48550/arxiv.1902.08044 · pith_short_12: ZNDKPYLXPVYU · pith_short_16: ZNDKPYLXPVYU4A2T · pith_short_8: ZNDKPYLX

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/ZNDKPYLXPVYU4A2TI65VNH5NTK \
  | 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: cb46a7e1777d714e035347bb569fad9a8be660cd1f6b6bbab0ee4bf46638fcbf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "119a4952d93afcc02580b3630955f5804dddc99ec79f48ad669edfee82b85f83",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2019-02-20T11:51:23Z",
    "title_canon_sha256": "3d4fee6e8859f9379dcdcd0400e2b420a191499c4246420393a79c9d558b5f37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08044",
    "kind": "arxiv",
    "version": 1
  }
}