Pith Number

pith:4AF3JECD

pith:2017:4AF3JECDAEFE67TVPIG4OFEFT6

not attested not anchored not stored refs pending

On a paradox in the impact dynamics of smooth rigid bodies

Epifanio G. Virga, Mark Wilkinson, Peter Palffy-Muhoray, Xiaoyu Zheng

arxiv:1703.10041 v2 · 2017-03-29 · 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{4AF3JECDAEFE67TVPIG4OFEFT6}

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	2026-05-18T00:29:46.257116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e00bb49043010a4f7e757a0dc714859f83cc816f0c3191af1a2b76adec5e0bbd

Aliases

arxiv: 1703.10041 · arxiv_version: 1703.10041v2 · doi: 10.48550/arxiv.1703.10041 · pith_short_12: 4AF3JECDAEFE · pith_short_16: 4AF3JECDAEFE67TV · pith_short_8: 4AF3JECD

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/4AF3JECDAEFE67TVPIG4OFEFT6 \
  | 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: e00bb49043010a4f7e757a0dc714859f83cc816f0c3191af1a2b76adec5e0bbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a05bad9605da47bf883113bab141e58ba7fe6a847a3166e14fd5338e6953f801",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2017-03-29T13:58:36Z",
    "title_canon_sha256": "5a6801e77481aa8c2d2eafcef5c6520f9033090344d69cf8a82a006e5973f0c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.10041",
    "kind": "arxiv",
    "version": 2
  }
}