Pith Number

pith:YQKHHFA7

pith:2010:YQKHHFA72GGETD4M2DSAERXCZU

not attested not anchored not stored refs pending

Recurrence plots and chaotic motion around Kerr black hole

Ji\v{r}\'i Kov\'a\v{r}, Ond\v{r}ej Kop\'a\v{c}ek, Vladim\'ir Karas, Zden\v{e}k Stuchl\'ik

arxiv:1011.2707 v1 · 2010-11-11 · astro-ph.HE · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YQKHHFA72GGETD4M2DSAERXCZU}

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	2026-05-18T01:09:22.071080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c41473941fd18c498f8cd0e40246e2cd01b3f9a817125f04b7b26db74d196026

Aliases

arxiv: 1011.2707 · arxiv_version: 1011.2707v1 · doi: 10.48550/arxiv.1011.2707 · pith_short_12: YQKHHFA72GGE · pith_short_16: YQKHHFA72GGETD4M · pith_short_8: YQKHHFA7

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/YQKHHFA72GGETD4M2DSAERXCZU \
  | 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: c41473941fd18c498f8cd0e40246e2cd01b3f9a817125f04b7b26db74d196026

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da2502e23bd51046c246bdb1f7c311033c31a673861c24a0fe173bcfb1e27dcf",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-11-11T17:01:15Z",
    "title_canon_sha256": "bb7b171931cca48253a571fe7ff784703c0d55e519f009cea4f05a732b6421e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.2707",
    "kind": "arxiv",
    "version": 1
  }
}