Pith Number

pith:SU4JY7QX

pith:1995:SU4JY7QXFYV3C2QXZ5PAL6MTI7

not attested not anchored not stored refs pending

Bizarre topology is natural in dynamical systems

James A. Yorke, Judy A. Kennedy

arxiv:math/9507223 v1 · 1995-07-01 · 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{SU4JY7QXFYV3C2QXZ5PAL6MTI7}

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	2026-05-18T01:05:48.467626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95389c7e172e2bb16a17cf5e05f99347e75312f16a2f3542bdf932bee4bbe6ed

Aliases

arxiv: math/9507223 · arxiv_version: math/9507223v1 · doi: 10.48550/arxiv.math/9507223 · pith_short_12: SU4JY7QXFYV3 · pith_short_16: SU4JY7QXFYV3C2QX · pith_short_8: SU4JY7QX

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/SU4JY7QXFYV3C2QXZ5PAL6MTI7 \
  | 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: 95389c7e172e2bb16a17cf5e05f99347e75312f16a2f3542bdf932bee4bbe6ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59e9284ac58fa96b4d17159077add8c193b26c292ffbe4ea23170d13e9fe7a6a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DS",
    "submitted_at": "1995-07-01T00:00:00Z",
    "title_canon_sha256": "c59665cec2a1856a01267a760f83f304002e4c80b8d512b68c5f0f4a2992976f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9507223",
    "kind": "arxiv",
    "version": 1
  }
}