Pith Number

pith:FUIK2Y6S

pith:2008:FUIK2Y6SLTMA32LPTO2DI272D5

not attested not anchored not stored refs pending

Local control of area-preserving maps

Cristel Chandre (CPT), Guido Ciraolo (M2P2), Michel Vittot (CPT)

arxiv:0809.0239 v1 · 2008-09-01 · 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{FUIK2Y6SLTMA32LPTO2DI272D5}

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	2026-05-18T00:57:18.736054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d10ad63d25cd80de96f9bb4346bfa1f43aaf5cdc9f6ccf327977085d1ba9796

Aliases

arxiv: 0809.0239 · arxiv_version: 0809.0239v1 · doi: 10.48550/arxiv.0809.0239 · pith_short_12: FUIK2Y6SLTMA · pith_short_16: FUIK2Y6SLTMA32LP · pith_short_8: FUIK2Y6S

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/FUIK2Y6SLTMA32LPTO2DI272D5 \
  | 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: 2d10ad63d25cd80de96f9bb4346bfa1f43aaf5cdc9f6ccf327977085d1ba9796

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d918d2e51b25fb53724d327221b26626edd3562b6f19f1479805f36446494755",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2008-09-01T13:31:36Z",
    "title_canon_sha256": "76d306dc1acec78968b91414e6013bd7703a1399702307361a0e8d07253dbce9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.0239",
    "kind": "arxiv",
    "version": 1
  }
}