Pith Number

pith:GWWEHQHS

pith:2017:GWWEHQHSDYFTXFUP2AN27M24A3

not attested not anchored not stored refs pending

An effective version of Katok's horseshoe theorem for conservative $C^2$ surface diffeomorphisms

Bassam Fayad, Zhiyuan Zhang

arxiv:1703.06254 v1 · 2017-03-18 · 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{GWWEHQHSDYFTXFUP2AN27M24A3}

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	2026-05-18T00:48:23.489349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35ac43c0f21e0b3b968fd01bafb35c06ce0b9ff193e7eea3a51fe93d42b50fb8

Aliases

arxiv: 1703.06254 · arxiv_version: 1703.06254v1 · doi: 10.48550/arxiv.1703.06254 · pith_short_12: GWWEHQHSDYFT · pith_short_16: GWWEHQHSDYFTXFUP · pith_short_8: GWWEHQHS

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/GWWEHQHSDYFTXFUP2AN27M24A3 \
  | 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: 35ac43c0f21e0b3b968fd01bafb35c06ce0b9ff193e7eea3a51fe93d42b50fb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65299beb23a991715dcada7f74d872c4cf975eaed5b0aa8721521e989299d955",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2017-03-18T04:50:47Z",
    "title_canon_sha256": "e0643018aca75c8373d5e53a564a4e6519739ef2f59d8469849e8e38ba3a0988"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.06254",
    "kind": "arxiv",
    "version": 1
  }
}