Pith Number

pith:WFLTDXGR

pith:2026:WFLTDXGRPFNUGSTRBBRSTFGYXN

not attested not anchored not stored refs pending

Introduction to Higher Order Classical Dynamics: Pais-Uhlenbeck Model and Coupled Oscillators

C\'assius Anderson Miquele de Melo, Ivan Francisco de Souza

arxiv:2605.20094 v1 · 2026-05-19 · physics.ed-ph · hep-th · math-ph · math.MP · physics.class-ph · quant-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{WFLTDXGRPFNUGSTRBBRSTFGYXN}

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	2026-05-20T02:06:01.836289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b15731dcd1795b434a7108632994d8bb610de7c3c4b51fc5ad0f7da6e98ce088

Aliases

arxiv: 2605.20094 · arxiv_version: 2605.20094v1 · doi: 10.48550/arxiv.2605.20094 · pith_short_12: WFLTDXGRPFNU · pith_short_16: WFLTDXGRPFNUGSTR · pith_short_8: WFLTDXGR

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/WFLTDXGRPFNUGSTRBBRSTFGYXN \
  | 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: b15731dcd1795b434a7108632994d8bb610de7c3c4b51fc5ad0f7da6e98ce088

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40c7eceb21ed2d29788f9cae90863b4a7a6703c5d97e5073e1c15f6ee1452b38",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP",
      "physics.class-ph",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2026-05-19T16:48:23Z",
    "title_canon_sha256": "04cc60803453a27d3473aee75805cb453b68b446df49dcd76893881cca8eba39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20094",
    "kind": "arxiv",
    "version": 1
  }
}