Pith Number

pith:WPLGH33T

pith:2025:WPLGH33TFV6IJQPOHOJHVIYCJB

not attested not anchored not stored refs pending

Improving physics-informed neural network extrapolation via transfer learning and adaptive activation functions

Alexandra Stavrianidi, Athanasios Papastathopoulos-Katsaros, Zhandong Liu

arxiv:2507.12659 v1 · 2025-07-16 · cs.LG · cs.AI · cs.NA · math.DS · math.NA · 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{WPLGH33TFV6IJQPOHOJHVIYCJB}

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	2026-07-05T11:38:36.731967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3d663ef732d7c84c1ee3b927aa302484ad79d02b14576c5b4818746f519419b

Aliases

arxiv: 2507.12659 · arxiv_version: 2507.12659v1 · doi: 10.48550/arxiv.2507.12659 · pith_short_12: WPLGH33TFV6I · pith_short_16: WPLGH33TFV6IJQPO · pith_short_8: WPLGH33T

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/WPLGH33TFV6IJQPOHOJHVIYCJB \
  | 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: b3d663ef732d7c84c1ee3b927aa302484ad79d02b14576c5b4818746f519419b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66efab7dba4c166f287c62b4d8a318d2c5fabd90feae082cb0cef369e07fe347",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.NA",
      "math.DS",
      "math.NA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-07-16T22:19:53Z",
    "title_canon_sha256": "5bc821aaa4057c63d8ac484ded8f8f53526fd0ffa1baa52868f6f0d5dce9611d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.12659",
    "kind": "arxiv",
    "version": 1
  }
}