Pith Number

pith:XL2BXFPO

pith:2020:XL2BXFPOK7E6IFFZBEQU5ZWNLK

not attested not anchored not stored refs pending

A continuous contact force model for impact analysis in multibody dynamics

Guangping He, Jie Zhang, Lei Zhao, Wenhao Li

arxiv:2001.01344 v1 · 2020-01-06 · physics.class-ph · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XL2BXFPOK7E6IFFZBEQU5ZWNLK}

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	2026-07-05T00:29:54.563358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

baf41b95ee57c9e414b909214ee6cd5aa87744a04f0dcf912b6c3c16ac802b13

Aliases

arxiv: 2001.01344 · arxiv_version: 2001.01344v1 · doi: 10.48550/arxiv.2001.01344 · pith_short_12: XL2BXFPOK7E6 · pith_short_16: XL2BXFPOK7E6IFFZ · pith_short_8: XL2BXFPO

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/XL2BXFPOK7E6IFFZBEQU5ZWNLK \
  | 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: baf41b95ee57c9e414b909214ee6cd5aa87744a04f0dcf912b6c3c16ac802b13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40eb5a21f850be98aa7de7e10d8f54c5f72592b12b043ad53c3bf3271b9d123a",
    "cross_cats_sorted": [
      "cond-mat.soft"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2020-01-06T00:59:51Z",
    "title_canon_sha256": "7ca0f658e6aefc3f672884970238ba7873d5d44e901d1d721807e117c36fd7ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.01344",
    "kind": "arxiv",
    "version": 1
  }
}