Pith Number

pith:KCASY2IB

pith:2013:KCASY2IBUNWN5UYTNSZCGFON3L

not attested not anchored not stored refs pending

Impact mechanics of elastic bodies with point contact

Robert Szalai

arxiv:1306.2224 v2 · 2013-06-10 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KCASY2IBUNWN5UYTNSZCGFON3L}

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	2026-05-18T03:01:46.466989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50812c6901a36cded3136cb22315cddaf6861cb6373eb2c4840ee7c2fa918847

Aliases

arxiv: 1306.2224 · arxiv_version: 1306.2224v2 · doi: 10.48550/arxiv.1306.2224 · pith_short_12: KCASY2IBUNWN · pith_short_16: KCASY2IBUNWN5UYT · pith_short_8: KCASY2IB

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/KCASY2IBUNWN5UYTNSZCGFON3L \
  | 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: 50812c6901a36cded3136cb22315cddaf6861cb6373eb2c4840ee7c2fa918847

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a417c00ec15d0ee1bafb232e4703e6ef7f1250906c95d6bc4447d3514c38265",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2013-06-10T15:17:40Z",
    "title_canon_sha256": "4ec0d085aebebbd2af26409858853931b3b1e655951623cf47b051258aa7506d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2224",
    "kind": "arxiv",
    "version": 2
  }
}