Pith Number

pith:I6RHCKCA

pith:2009:I6RHCKCA5CUQJ6HQHF277U5BR5

not attested not anchored not stored refs pending

Near integrable systems

E. Bogomolny, M. R. Dennis, R. Dubertrand

arxiv:0902.2089 v2 · 2009-02-12 · 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{I6RHCKCA5CUQJ6HQHF277U5BR5}

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	2026-05-18T02:14:48.191447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47a2712840e8a904f8f03975ffd3a18f57d61507a83d52ec9b9612d77d81ac43

Aliases

arxiv: 0902.2089 · arxiv_version: 0902.2089v2 · doi: 10.48550/arxiv.0902.2089 · pith_short_12: I6RHCKCA5CUQ · pith_short_16: I6RHCKCA5CUQJ6HQ · pith_short_8: I6RHCKCA

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/I6RHCKCA5CUQJ6HQHF277U5BR5 \
  | 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: 47a2712840e8a904f8f03975ffd3a18f57d61507a83d52ec9b9612d77d81ac43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59a9438a8c2ef6980fb2c4ec7915a8db927b7840f82dfe1bf9fbd8e06ffadb1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2009-02-12T11:51:13Z",
    "title_canon_sha256": "8e8cf3415ffbae9e735fe7f98d8f937580c85d28f9c332042cd6f7fda6d8ea48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2089",
    "kind": "arxiv",
    "version": 2
  }
}