Pith Number

pith:5QZUGWKZ

pith:2025:5QZUGWKZDMILJTDXZFXWTGMAFX

not attested not anchored not stored refs pending

Physics-Informed Regression: Parameter Estimation in Parameter-Linear Nonlinear Dynamic Models

Albert Brincker Olson, Allan Peter Engsig-Karup (DTU Compute), Jonas S{\o}eborg Nielsen, Mads Peter S{\o}rensen, Marcus Galea Jacobsen

arxiv:2508.19249 v1 · 2025-07-25 · cs.LG · math.DS · stat.ME · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QZUGWKZDMILJTDXZFXWTGMAFX}

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

DASyR-LLM: Domain-Aware Symbolic Regression with LLMs for Kinetic Model Discovery

Receipt and verification

First computed	2026-07-05T11:59:41.678471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec334359591b10b4cc77c96f6999802dc8d0ebd257f7a3e12bacedcbb36d199c

Aliases

arxiv: 2508.19249 · arxiv_version: 2508.19249v1 · doi: 10.48550/arxiv.2508.19249 · pith_short_12: 5QZUGWKZDMIL · pith_short_16: 5QZUGWKZDMILJTDX · pith_short_8: 5QZUGWKZ

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/5QZUGWKZDMILJTDXZFXWTGMAFX \
  | 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: ec334359591b10b4cc77c96f6999802dc8d0ebd257f7a3e12bacedcbb36d199c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4aa4d04ce145f5594d5df25545a34e2aafb8fe3e5c07c0fdaea61949b5f41cd1",
    "cross_cats_sorted": [
      "math.DS",
      "stat.ME",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-07-25T00:31:16Z",
    "title_canon_sha256": "d499d4f47aa0a406394bd81e9532e2494257c4cf31d03904cf3943f24fa21276"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.19249",
    "kind": "arxiv",
    "version": 1
  }
}