Pith Number

pith:EMHKOO4L

pith:2009:EMHKOO4L3PUTSRL7UXGLFSAVFQ

not attested not anchored not stored refs pending

Dynamics of the Universal Area-Preserving Map Associated with Period Doubling: Hyperbolic Sets

Denis Gaidashev, Tomas Johnson

arxiv:0905.1390 v4 · 2009-05-09 · 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{EMHKOO4L3PUTSRL7UXGLFSAVFQ}

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	2026-05-18T02:13:46.183340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

230ea73b8bdbe939457fa5ccb2c8152c22988ff5445b201fedee6e5f3611caab

Aliases

arxiv: 0905.1390 · arxiv_version: 0905.1390v4 · doi: 10.48550/arxiv.0905.1390 · pith_short_12: EMHKOO4L3PUT · pith_short_16: EMHKOO4L3PUTSRL7 · pith_short_8: EMHKOO4L

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/EMHKOO4L3PUTSRL7UXGLFSAVFQ \
  | 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: 230ea73b8bdbe939457fa5ccb2c8152c22988ff5445b201fedee6e5f3611caab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8066be8e565e736a14f56690555cc4fe95c78a6b55f068619a5bb91f26aad198",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2009-05-09T09:33:41Z",
    "title_canon_sha256": "0c221457cf8b367a50e5d1c773c4db158684330eec9e3e9508705ed14b85da60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1390",
    "kind": "arxiv",
    "version": 4
  }
}