Pith Number

pith:XF44BE4Q

pith:2008:XF44BE4QQ5ZGY5WUS7LHIBNN6V

not attested not anchored not stored refs pending

Estimation of the control parameter from symbolic sequences: Unimodal maps with variable critical point

David Arroyo, Gonzalo Alvarez, Jos\'e Mar\'ia Amig\'o

arxiv:0812.2331 v1 · 2008-12-12 · nlin.CD

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XF44BE4QQ5ZGY5WUS7LHIBNN6V}

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	2026-05-18T02:15:10.672939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b979c0939087726c76d497d67405adf5547cb52bfb3e1ea4648060432d3fcae9

Aliases

arxiv: 0812.2331 · arxiv_version: 0812.2331v1 · doi: 10.48550/arxiv.0812.2331 · pith_short_12: XF44BE4QQ5ZG · pith_short_16: XF44BE4QQ5ZGY5WU · pith_short_8: XF44BE4Q

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/XF44BE4QQ5ZGY5WUS7LHIBNN6V \
  | 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: b979c0939087726c76d497d67405adf5547cb52bfb3e1ea4648060432d3fcae9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4391eb43a0e24952a0a4e83236f316bca6ecffdac393ffb2266d7a79d0e5a25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2008-12-12T09:59:29Z",
    "title_canon_sha256": "f6a47a2a7380a18550bea5973508b4697cd3762be7fb5d31a60af23ed15df836"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.2331",
    "kind": "arxiv",
    "version": 1
  }
}