Pith Number

pith:NYR6D3AH

pith:2013:NYR6D3AHEPVYUMQMS2HNWAM5K6

not attested not anchored not stored refs pending

The imaginary Kapitza pendulum

Boyan T. Torosov, Giuseppe Della Valle, Stefano Longhi

arxiv:1310.5309 v1 · 2013-10-20 · quant-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{NYR6D3AHEPVYUMQMS2HNWAM5K6}

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	2026-05-18T03:09:45.830359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e23e1ec0723eb8a320c968edb019d579bddbc9fbd8aa4e13fe441cc8b7cf911

Aliases

arxiv: 1310.5309 · arxiv_version: 1310.5309v1 · doi: 10.48550/arxiv.1310.5309 · pith_short_12: NYR6D3AHEPVY · pith_short_16: NYR6D3AHEPVYUMQM · pith_short_8: NYR6D3AH

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/NYR6D3AHEPVYUMQMS2HNWAM5K6 \
  | 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: 6e23e1ec0723eb8a320c968edb019d579bddbc9fbd8aa4e13fe441cc8b7cf911

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f04d210debd185c4c65065540bc54ac85f209da56aabc09b5ca07a0a16835c1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-10-20T09:09:51Z",
    "title_canon_sha256": "2a90f59a020df6b608566bfb048cbda781f0982d23e4a5710cf5e5dfd9ddee6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.5309",
    "kind": "arxiv",
    "version": 1
  }
}