Pith Number

pith:5IWNDXLB

pith:2008:5IWNDXLBSCJG3W6XQDLP7AKQ5S

not attested not anchored not stored refs pending

The real analytic Feigenbaum-Coullet-Tresser attractor in the disk

E. Catsigeras, H. Enrich, M. Cerminara

arxiv:0805.1152 v1 · 2008-05-08 · 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{5IWNDXLBSCJG3W6XQDLP7AKQ5S}

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	2026-05-18T04:31:51.309746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea2cd1dd6190926ddbd780d6ff8150ec966ee481b34843a3b649704e0aac13b7

Aliases

arxiv: 0805.1152 · arxiv_version: 0805.1152v1 · doi: 10.48550/arxiv.0805.1152 · pith_short_12: 5IWNDXLBSCJG · pith_short_16: 5IWNDXLBSCJG3W6X · pith_short_8: 5IWNDXLB

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/5IWNDXLBSCJG3W6XQDLP7AKQ5S \
  | 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: ea2cd1dd6190926ddbd780d6ff8150ec966ee481b34843a3b649704e0aac13b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcb0096933d83d214bba03c145d0ff247f0e696f4da197d9254c515268d33437",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2008-05-08T12:34:30Z",
    "title_canon_sha256": "20c63012dbc1147fb2b723a9e055096a896fc85351410203effd93657da047fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.1152",
    "kind": "arxiv",
    "version": 1
  }
}