Pith Number

pith:Q4Q4AQ6Y

pith:2015:Q4Q4AQ6YY6HAUXP4RUA4KIFWSP

not attested not anchored not stored refs pending

On parameter loci of the H\'enon family

Yutaka Ishii, Zin Arai

arxiv:1501.01368 v4 · 2015-01-07 · 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{Q4Q4AQ6YY6HAUXP4RUA4KIFWSP}

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	2026-05-18T00:20:49.542762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8721c043d8c78e0a5dfc8d01c520b693ed7f5083a2f5a0b0451dc08722d0697d

Aliases

arxiv: 1501.01368 · arxiv_version: 1501.01368v4 · doi: 10.48550/arxiv.1501.01368 · pith_short_12: Q4Q4AQ6YY6HA · pith_short_16: Q4Q4AQ6YY6HAUXP4 · pith_short_8: Q4Q4AQ6Y

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/Q4Q4AQ6YY6HAUXP4RUA4KIFWSP \
  | 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: 8721c043d8c78e0a5dfc8d01c520b693ed7f5083a2f5a0b0451dc08722d0697d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fd602aee8ff7219bf51a12697ac31b687639a85ec78a0a4e514894455ec8e1d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-01-07T05:08:13Z",
    "title_canon_sha256": "d3cbe092240544b68865a153e91bebac2e929b81ebaf0386b937f08d3df80328"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01368",
    "kind": "arxiv",
    "version": 4
  }
}