Pith Number

pith:JGEPKASS

pith:2025:JGEPKASS4GMWRE4QMSOWPTA226

not attested not anchored not stored refs pending

PKG-DPO: Optimizing Domain-Specific AI systems with Physics Knowledge Graphs and Direct Preference Optimization

Bryson Wilcox, Jason Thom, Max Sawa, Nitin Nagesh Kulkarni

arxiv:2508.18391 v1 · 2025-08-25 · 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{JGEPKASS4GMWRE4QMSOWPTA226}

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	2026-07-05T11:59:23.444572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4988f50252e199689390649d67cc1ad7aae6ea5d2774e596c4eb5e02701fbb3a

Aliases

arxiv: 2508.18391 · arxiv_version: 2508.18391v1 · doi: 10.48550/arxiv.2508.18391 · pith_short_12: JGEPKASS4GMW · pith_short_16: JGEPKASS4GMWRE4Q · pith_short_8: JGEPKASS

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/JGEPKASS4GMWRE4QMSOWPTA226 \
  | 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: 4988f50252e199689390649d67cc1ad7aae6ea5d2774e596c4eb5e02701fbb3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5a39035f68c894f2219b7a9f1e72365ec2b54fb1f1586573bc9cd18c0991fac",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2025-08-25T18:31:03Z",
    "title_canon_sha256": "34007eb29d38b079695c616f61d0973d974c4a6f9fa3362b9e308f17630233eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.18391",
    "kind": "arxiv",
    "version": 1
  }
}