Pith Number

pith:HJU3FSNM

pith:2008:HJU3FSNMNF5Q4KL5URF3CXLX73

not attested not anchored not stored refs pending

A Poincar\'e section for the general heavy rigid body

Holger R. Dullin, Peter H. Richter, Sven Schmidt

arxiv:0803.0076 v1 · 2008-03-01 · 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{HJU3FSNMNF5Q4KL5URF3CXLX73}

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	2026-05-18T03:20:19.286688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a69b2c9ac697b0e297da44bb15d77fedf4aeb57dc55078ae3f41e8c3b726616

Aliases

arxiv: 0803.0076 · arxiv_version: 0803.0076v1 · doi: 10.48550/arxiv.0803.0076 · pith_short_12: HJU3FSNMNF5Q · pith_short_16: HJU3FSNMNF5Q4KL5 · pith_short_8: HJU3FSNM

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/HJU3FSNMNF5Q4KL5URF3CXLX73 \
  | 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: 3a69b2c9ac697b0e297da44bb15d77fedf4aeb57dc55078ae3f41e8c3b726616

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c52d80df8325730b2d80d295f896b2d5ea7f8222643da968327624b9f9f2640d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2008-03-01T18:35:40Z",
    "title_canon_sha256": "3862ea1b1eaf97196762e81240a0a819eca4c84f37a027a69f1877523a57a5d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.0076",
    "kind": "arxiv",
    "version": 1
  }
}