Pith Number

pith:ERA6SVKJ

pith:1999:ERA6SVKJXRPY7IT3QOBGOLLFRP

not attested not anchored not stored refs pending

Fuzzy Control of Chaos

Julyan H. E. Cartwright, Oscar Calvo

arxiv:chao-dyn/9905033 v1 · 1999-05-20 · chao-dyn · 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{ERA6SVKJXRPY7IT3QOBGOLLFRP}

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	2026-05-18T03:52:15.941499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2441e95549bc5f8fa27b8382672d658be3001e525f56bce66d72caeec7e2e2a0

Aliases

arxiv: chao-dyn/9905033 · arxiv_version: chao-dyn/9905033v1 · doi: 10.48550/arxiv.chao-dyn/9905033 · pith_short_12: ERA6SVKJXRPY · pith_short_16: ERA6SVKJXRPY7IT3 · pith_short_8: ERA6SVKJ

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/ERA6SVKJXRPY7IT3QOBGOLLFRP \
  | 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: 2441e95549bc5f8fa27b8382672d658be3001e525f56bce66d72caeec7e2e2a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2cc11b5fd281f88d932434437d583132149233a0aff70cee5702e4085fffb49c",
    "cross_cats_sorted": [
      "nlin.CD"
    ],
    "license": "",
    "primary_cat": "chao-dyn",
    "submitted_at": "1999-05-20T15:34:11Z",
    "title_canon_sha256": "1a5eb9afbf1f765468c1d104c8a8d185f132d414075189612f213b4fd479982f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "chao-dyn/9905033",
    "kind": "arxiv",
    "version": 1
  }
}