Pith Number

pith:PJHCBY3P

pith:2014:PJHCBY3PXXO6HMSZ4OJF2BLSWG

not attested not anchored not stored refs pending

Periodic and falling-free motion of an inverted spherical pendulum with a moving pivot point

Ivan Polekhin

arxiv:1411.1585 v4 · 2014-11-06 · math.DS · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PJHCBY3PXXO6HMSZ4OJF2BLSWG}

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	2026-05-18T01:35:35.229176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a4e20e36fbddde3b259e3925d0572b1b8837b0391e7bc41c70d6f2d4e54289b

Aliases

arxiv: 1411.1585 · arxiv_version: 1411.1585v4 · doi: 10.48550/arxiv.1411.1585 · pith_short_12: PJHCBY3PXXO6 · pith_short_16: PJHCBY3PXXO6HMSZ · pith_short_8: PJHCBY3P

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/PJHCBY3PXXO6HMSZ4OJF2BLSWG \
  | 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: 7a4e20e36fbddde3b259e3925d0572b1b8837b0391e7bc41c70d6f2d4e54289b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7ac62e9bd5e1cab7746403f4cdd9bcf0267638ef64c8fb333316d3deea3e06f",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2014-11-06T12:30:32Z",
    "title_canon_sha256": "e2069bc458b9c06229cd7c7724ad7eaca3a70607311713ae4b5779edc1992268"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.1585",
    "kind": "arxiv",
    "version": 4
  }
}