Pith Number

pith:WUUIG2M3

pith:2018:WUUIG2M3G3KA5DJ77Y5UPXJWUK

not attested not anchored not stored refs pending

Comment on "A Nonholonomic Model of the Paul Trap"

Li Du, Sihui Wang, Wenkai Fan

arxiv:1806.09271 v2 · 2018-06-25 · 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{WUUIG2M3G3KA5DJ77Y5UPXJWUK}

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	2026-05-18T00:12:23.990817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b52883699b36d40e8d3ffe3b47dd36a2a1c2ce96010414d5538badfce288a06c

Aliases

arxiv: 1806.09271 · arxiv_version: 1806.09271v2 · doi: 10.48550/arxiv.1806.09271 · pith_short_12: WUUIG2M3G3KA · pith_short_16: WUUIG2M3G3KA5DJ7 · pith_short_8: WUUIG2M3

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/WUUIG2M3G3KA5DJ77Y5UPXJWUK \
  | 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: b52883699b36d40e8d3ffe3b47dd36a2a1c2ce96010414d5538badfce288a06c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91e842e5de2f24bc34496d877ce098eb59e4b017521aab7de157847302872230",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2018-06-25T03:23:51Z",
    "title_canon_sha256": "4e4f9db90d752c66570dff409599c96e61761bc55978430549889b5989715173"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.09271",
    "kind": "arxiv",
    "version": 2
  }
}