Pith Number

pith:GBJ2A2RQ

pith:2011:GBJ2A2RQKQRM47REH5JYC4ET22

not attested not anchored not stored refs pending

Geometric Integration of Hamiltonian Systems Perturbed by Rayleigh Damping

Gustaf S\"oderlind, Klas Modin

arxiv:1103.2171 v3 · 2011-03-11 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GBJ2A2RQKQRM47REH5JYC4ET22}

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	2026-05-18T02:22:30.506152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3053a06a305422ce7e243f53817093d6885f0a9ee0230675e8d4207f76ac2283

Aliases

arxiv: 1103.2171 · arxiv_version: 1103.2171v3 · doi: 10.48550/arxiv.1103.2171 · pith_short_12: GBJ2A2RQKQRM · pith_short_16: GBJ2A2RQKQRM47RE · pith_short_8: GBJ2A2RQ

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/GBJ2A2RQKQRM47REH5JYC4ET22 \
  | 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: 3053a06a305422ce7e243f53817093d6885f0a9ee0230675e8d4207f76ac2283

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c9df4f3f5c9d98cdca402e9e877064a88e903703805f53d444a7bf562b306d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-03-11T00:07:03Z",
    "title_canon_sha256": "7c957b0e891c62c56b1ae9c676a3b4591cfcbb9e7b617cc2b9fd49d90d3ff4d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2171",
    "kind": "arxiv",
    "version": 3
  }
}