Pith Number

pith:DFHJOZRB

pith:1999:DFHJOZRBSVYE2DFGIH3HH6OVDE

not attested not anchored not stored refs pending

Chaos in the Hill system

B. Mashhoon, C. Chicone, D. G. Retzloff

arxiv:gr-qc/9912015 v1 · 1999-12-02 · gr-qc · astro-ph · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DFHJOZRBSVYE2DFGIH3HH6OVDE}

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	2026-07-04T14:26:25.380084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

194e97662195704d0ca641f673f9d51938d9b08d577bbc9c0a297284327b5294

Aliases

arxiv: gr-qc/9912015 · arxiv_version: gr-qc/9912015v1 · doi: 10.48550/arxiv.gr-qc/9912015 · pith_short_12: DFHJOZRBSVYE · pith_short_16: DFHJOZRBSVYE2DFG · pith_short_8: DFHJOZRB

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/DFHJOZRBSVYE2DFGIH3HH6OVDE \
  | 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: 194e97662195704d0ca641f673f9d51938d9b08d577bbc9c0a297284327b5294

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6cb1b5548c2917b41dd9d473cce24df3aa3d8edf6fee8c19b438bb637106372",
    "cross_cats_sorted": [
      "astro-ph",
      "nlin.CD"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-12-02T23:11:38Z",
    "title_canon_sha256": "63a6b263a5464bd29e74642cb53655d2b9dfd758943a38e9b14f68848c2dc8f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9912015",
    "kind": "arxiv",
    "version": 1
  }
}