Pith Number

pith:N7SWNIZ7

pith:2009:N7SWNIZ7YZT4FOC4NJSQZU6DJH

not attested not anchored not stored refs pending

Analisys of Hamiltonian Boundary Value Methods (HBVMs): a class of energy-preserving Runge-Kutta methods for the numerical solution of polynomial Hamiltonian systems

Donato Trigiante, Felice Iavernaro, Luigi Brugnano

arxiv:0909.5659 v2 · 2009-09-30 · 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{N7SWNIZ7YZT4FOC4NJSQZU6DJH}

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	2026-05-18T02:49:20.724157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fe566a33fc667c2b85c6a650cd3c349e9438d069de916e19c1b592d8e5336a2

Aliases

arxiv: 0909.5659 · arxiv_version: 0909.5659v2 · doi: 10.48550/arxiv.0909.5659 · pith_short_12: N7SWNIZ7YZT4 · pith_short_16: N7SWNIZ7YZT4FOC4 · pith_short_8: N7SWNIZ7

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/N7SWNIZ7YZT4FOC4NJSQZU6DJH \
  | 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: 6fe566a33fc667c2b85c6a650cd3c349e9438d069de916e19c1b592d8e5336a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f464b751968513be14c257d25967479a18b11abeed86d680842431d3e0a2484d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-09-30T16:43:03Z",
    "title_canon_sha256": "6ae71d277bb1661da269641284f4d4980a9e1bbe1642a518e1540af4d852d854"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5659",
    "kind": "arxiv",
    "version": 2
  }
}