Pith Number

pith:4VA2WIJN

pith:2012:4VA2WIJNA2ULTVDSHXIHKQWAMG

not attested not anchored not stored refs pending

A note on stability of the vertical uniform rotations of the heavy top

Dan Comanescu

arxiv:1201.4918 v1 · 2012-01-24 · math-ph · math.DS · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4VA2WIJNA2ULTVDSHXIHKQWAMG}

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	2026-05-18T03:30:55.554551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e541ab212d06a8b9d4723dd07542c06185fcab8332141b0672afe35b49a97b2d

Aliases

arxiv: 1201.4918 · arxiv_version: 1201.4918v1 · doi: 10.48550/arxiv.1201.4918 · pith_short_12: 4VA2WIJNA2UL · pith_short_16: 4VA2WIJNA2ULTVDS · pith_short_8: 4VA2WIJN

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/4VA2WIJNA2ULTVDSHXIHKQWAMG \
  | 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: e541ab212d06a8b9d4723dd07542c06185fcab8332141b0672afe35b49a97b2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b43439a161a5e437ede2b456e7a312aacccef781c34fd449e656643e7c428b5e",
    "cross_cats_sorted": [
      "math.DS",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2012-01-24T07:24:09Z",
    "title_canon_sha256": "f49b586edb6f56a603f105bd4e91dfd0843b152a2be33ca6de671f7f25981d6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4918",
    "kind": "arxiv",
    "version": 1
  }
}