Pith Number

pith:4XIWR2GR

pith:2021:4XIWR2GRDJ4R3DZKO2MM6FYXFN

not attested not anchored not stored refs pending

Port-Hamiltonian Neural Networks for Learning Explicit Time-Dependent Dynamical Systems

David Sondak, Marios Mattheakis, Pavlos Protopapas, Shaan Desai, Stephen Roberts

arxiv:2107.08024 v1 · 2021-07-16 · cs.LG · nlin.CD · physics.comp-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{4XIWR2GRDJ4R3DZKO2MM6FYXFN}

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.

Cited by

1 paper in Pith

Meta-learning Structure-Preserving Dynamics

Receipt and verification

First computed	2026-07-05T03:19:18.423918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5d168e8d11a791d8f2a7698cf17172b57a3dc027aa36cd981e0f6085d0a6f5e

Aliases

arxiv: 2107.08024 · arxiv_version: 2107.08024v1 · doi: 10.48550/arxiv.2107.08024 · pith_short_12: 4XIWR2GRDJ4R · pith_short_16: 4XIWR2GRDJ4R3DZK · pith_short_8: 4XIWR2GR

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/4XIWR2GRDJ4R3DZKO2MM6FYXFN \
  | 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: e5d168e8d11a791d8f2a7698cf17172b57a3dc027aa36cd981e0f6085d0a6f5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "549257988b62e7d68029d50bb9970bcb296a64acad11bc09d5ad0dfb80cac9fe",
    "cross_cats_sorted": [
      "nlin.CD",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-07-16T17:31:54Z",
    "title_canon_sha256": "d7fc3053c64082529b08e6ae81197463cd717ec0d86446367ba68bdb40e31a2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.08024",
    "kind": "arxiv",
    "version": 1
  }
}