Pith Number

pith:SS4EM4JN

pith:2026:SS4EM4JNWRLUXDCYOYNSD5G3R4

not attested not anchored not stored refs pending

Do Physics Foundation Models Learn Generalizable Physics? A Bias-Aware Benchmark Across Physical Regimes and Distribution Shifts

Ayan Biswas, Han-Wei Shen, Mengdi Chu, Yang Liu

arxiv:2605.29283 v1 · 2026-05-28 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SS4EM4JNWRLUXDCYOYNSD5G3R4}

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	2026-05-29T01:05:29.351878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94b846712db4574b8c58761b21f4db8f002dfe49a82ea0eac2f2e7c8b68ef54b

Aliases

arxiv: 2605.29283 · arxiv_version: 2605.29283v1 · doi: 10.48550/arxiv.2605.29283 · pith_short_12: SS4EM4JNWRLU · pith_short_16: SS4EM4JNWRLUXDCY · pith_short_8: SS4EM4JN

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/SS4EM4JNWRLUXDCYOYNSD5G3R4 \
  | 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: 94b846712db4574b8c58761b21f4db8f002dfe49a82ea0eac2f2e7c8b68ef54b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d45e95e4a8cfa3f8e7acec49ef298861ac92259616aade8ed66c4d32c7f02e81",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-28T03:08:57Z",
    "title_canon_sha256": "ac76c8ba7d5909af27af4ee4bdd38ce2039c6f42d451272062600b85538bbf8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.29283",
    "kind": "arxiv",
    "version": 1
  }
}