Pith Number

pith:6WTF65A3

pith:2026:6WTF65A372JDKJNBQCDRMLNGZH

not attested not anchored not stored refs pending

Learning partially observed systems with neural Hamiltonian ordinary differential equations

Alexander Johannes Stasik, S{\o}lve Eidnes, Sunniva Meltzer

arxiv:2605.23510 v1 · 2026-05-22 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6WTF65A372JDKJNBQCDRMLNGZH}

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	2026-05-25T02:01:58.563224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5a65f741bfe923525a18087162da6c9c6b60b2a74a69118def87f7d2ca65ce1

Aliases

arxiv: 2605.23510 · arxiv_version: 2605.23510v1 · doi: 10.48550/arxiv.2605.23510 · pith_short_12: 6WTF65A372JD · pith_short_16: 6WTF65A372JDKJNB · pith_short_8: 6WTF65A3

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/6WTF65A372JDKJNBQCDRMLNGZH \
  | 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: f5a65f741bfe923525a18087162da6c9c6b60b2a74a69118def87f7d2ca65ce1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a06fb15d793d6656a79b9474a4cde993668ea47b72c6c5ff59a1c6ce3e09b07c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-22T11:18:39Z",
    "title_canon_sha256": "6e322e4e7cf041bf9228878342b661bdd539db23ce688845f2072469c0e75b74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.23510",
    "kind": "arxiv",
    "version": 1
  }
}