Pith Number

pith:I7GEWXAM

pith:2018:I7GEWXAMLM4JOOHRCSFV54TYQ4

not attested not anchored not stored refs pending

Boundary of the horseshoe locus for the H\'enon family

Hiroki Takahasi, Yutaka Ishii, Zin Arai

arxiv:1803.09381 v1 · 2018-03-26 · 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{I7GEWXAMLM4JOOHRCSFV54TYQ4}

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	2026-05-18T00:20:11.792707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47cc4b5c0c5b389738f1148b5ef278871a7b48113f4421332a74ec3b44a620f0

Aliases

arxiv: 1803.09381 · arxiv_version: 1803.09381v1 · doi: 10.48550/arxiv.1803.09381 · pith_short_12: I7GEWXAMLM4J · pith_short_16: I7GEWXAMLM4JOOHR · pith_short_8: I7GEWXAM

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/I7GEWXAMLM4JOOHRCSFV54TYQ4 \
  | 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: 47cc4b5c0c5b389738f1148b5ef278871a7b48113f4421332a74ec3b44a620f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9968c305f631d4fe09cb5b3df8ebab375d55d35358dddc472d3bfaf1856bd39b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2018-03-26T01:33:17Z",
    "title_canon_sha256": "c2ca687391af3c496dd1882e6ea6219691de07164e3a948095a27516db01a5cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09381",
    "kind": "arxiv",
    "version": 1
  }
}