Pith Number

pith:Y6IF7TLI

pith:2012:Y6IF7TLIJCG5IATLROLEH4GCM7

not attested not anchored not stored refs pending

Skew Product Attractors and concavity

Llu\'is Alsed\`a, Micha{\l} Misiurewicz

arxiv:1212.4437 v1 · 2012-12-18 · 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{Y6IF7TLIJCG5IATLROLEH4GCM7}

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	2026-05-18T03:38:13.019560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7905fcd68488dd4026b8b9643f0c267f46478ffc133e1b3842bf060800ea39f

Aliases

arxiv: 1212.4437 · arxiv_version: 1212.4437v1 · doi: 10.48550/arxiv.1212.4437 · pith_short_12: Y6IF7TLIJCG5 · pith_short_16: Y6IF7TLIJCG5IATL · pith_short_8: Y6IF7TLI

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/Y6IF7TLIJCG5IATLROLEH4GCM7 \
  | 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: c7905fcd68488dd4026b8b9643f0c267f46478ffc133e1b3842bf060800ea39f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1cf2087505e757a4dd565ac804bac27d60955abace6ed5ba3c13346e9ba048a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2012-12-18T17:34:35Z",
    "title_canon_sha256": "45ad2139e1e36bd6af1e8e30ac02fd19162fdb369eccc2e570f4c0268faf33cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.4437",
    "kind": "arxiv",
    "version": 1
  }
}