Pith Number

pith:EH7ON7QZ

pith:2007:EH7ON7QZSJH2HJQJAASQF3QSLY

not attested not anchored not stored refs pending

Forward and non-forward symplectic integrators in solving classical dynamics problems

Siu A. Chin

arxiv:0704.3273 v1 · 2007-04-24 · physics.comp-ph · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EH7ON7QZSJH2HJQJAASQF3QSLY}

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	2026-07-04T15:01:03.503033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21fee6fe19924fa3a609002502ee125e39deb02c592942b2d8e4abc6206a0e05

Aliases

arxiv: 0704.3273 · arxiv_version: 0704.3273v1 · doi: 10.48550/arxiv.0704.3273 · pith_short_12: EH7ON7QZSJH2 · pith_short_16: EH7ON7QZSJH2HJQJ · pith_short_8: EH7ON7QZ

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/EH7ON7QZSJH2HJQJAASQF3QSLY \
  | 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: 21fee6fe19924fa3a609002502ee125e39deb02c592942b2d8e4abc6206a0e05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99ea4a4885c6aa30b0f4b80f435c7bde00495589a189a2a70ec30204bc7a8ea7",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2007-04-24T20:42:25Z",
    "title_canon_sha256": "38396495944cf407f53c212da0f4db8df0eb1754e54bf75d95b04d50c3263071"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.3273",
    "kind": "arxiv",
    "version": 1
  }
}