Pith Number

pith:LTFKQ6NS

pith:2025:LTFKQ6NSKJCRK4XTLA2Q2IF5FV

not attested not anchored not stored refs pending

A global structure-preserving kernel method for the learning of Poisson systems

Daiying Yin, Jianyu Hu, Juan-Pablo Ortega

arxiv:2504.13396 v1 · 2025-04-18 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LTFKQ6NSKJCRK4XTLA2Q2IF5FV}

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	2026-07-05T10:50:54.087640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ccaa879b252451572f358350d20bd2d6e853bc4cf6a7fcc7146b868bb7cf161

Aliases

arxiv: 2504.13396 · arxiv_version: 2504.13396v1 · doi: 10.48550/arxiv.2504.13396 · pith_short_12: LTFKQ6NSKJCR · pith_short_16: LTFKQ6NSKJCRK4XT · pith_short_8: LTFKQ6NS

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/LTFKQ6NSKJCRK4XTLA2Q2IF5FV \
  | 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: 5ccaa879b252451572f358350d20bd2d6e853bc4cf6a7fcc7146b868bb7cf161

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c354f13d0a973d1ce98a56c3aac2e0e3c1350c1527904374e013a67d40287a3d",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-04-18T01:12:08Z",
    "title_canon_sha256": "456fec5dd234a6ed8b6b2736679c7f3a66c678528b0b75281361dadb4faf2cd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.13396",
    "kind": "arxiv",
    "version": 1
  }
}