Pith Number

pith:3MKMTCFI

pith:2014:3MKMTCFIRS7N6N4TXIVY5OP3QU

not attested not anchored not stored refs pending

An inverted pendulum with a moving pivot point: examples of topological approach

Ivan Polekhin

arxiv:1407.4787 v4 · 2014-07-17 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3MKMTCFIRS7N6N4TXIVY5OP3QU}

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.

Cited by

1 paper in Pith

Rod in a train: a mechanical problem of H.Whitney, or Much Ado About Nothing

Receipt and verification

First computed	2026-05-18T01:35:32.914101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db14c988a88cbedf3793ba2b8eb9fb851f7a9bde0b966c05079ba2874be188ac

Aliases

arxiv: 1407.4787 · arxiv_version: 1407.4787v4 · doi: 10.48550/arxiv.1407.4787 · pith_short_12: 3MKMTCFIRS7N · pith_short_16: 3MKMTCFIRS7N6N4T · pith_short_8: 3MKMTCFI

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/3MKMTCFIRS7N6N4TXIVY5OP3QU \
  | 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: db14c988a88cbedf3793ba2b8eb9fb851f7a9bde0b966c05079ba2874be188ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f14dd6975b2814c0d23a30998d30f6db48b295699539ac61f80090114a88a2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2014-07-17T19:35:20Z",
    "title_canon_sha256": "a1248dfedfb935cf5152a4fe67b94c77f6a6897ec12ff7d46d8d9f545102890d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.4787",
    "kind": "arxiv",
    "version": 4
  }
}