Pith Number

pith:VJPHJPUM

pith:2018:VJPHJPUM37M5TRVVOC56HPKCT5

not attested not anchored not stored refs pending

On the straightforward perturbation theory in classical mechanics

Francisco M. Fern\'andez, Paolo Amore

arxiv:1804.08399 v1 · 2018-03-18 · physics.pop-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{VJPHJPUM37M5TRVVOC56HPKCT5}

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	2026-05-18T00:17:48.516432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa5e74be8cdfd9d9c6b570bbe3bd429f7bf0992d2ee8fe2ae7e4d27e6b7db87f

Aliases

arxiv: 1804.08399 · arxiv_version: 1804.08399v1 · doi: 10.48550/arxiv.1804.08399 · pith_short_12: VJPHJPUM37M5 · pith_short_16: VJPHJPUM37M5TRVV · pith_short_8: VJPHJPUM

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/VJPHJPUM37M5TRVVOC56HPKCT5 \
  | 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: aa5e74be8cdfd9d9c6b570bbe3bd429f7bf0992d2ee8fe2ae7e4d27e6b7db87f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "769f102c9fc7853c5bd0c7d1130106b7d4d03d9dcb3ca5fba3114d176de08d69",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2018-03-18T22:23:09Z",
    "title_canon_sha256": "23953cba5b6fd8c78fd3ac57f2439dfa6de630adba566737a046325cb30cc022"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08399",
    "kind": "arxiv",
    "version": 1
  }
}