Pith Number

pith:FGRCQQBZ

pith:2025:FGRCQQBZLWX7UZR37ZS2NYOQJY

not attested not anchored not stored refs pending

AL-PINN: Active Learning-Driven Physics-Informed Neural Networks for Efficient Sample Selection in Solving Partial Differential Equations

Keon Vin Park

arxiv:2502.03963 v3 · 2025-02-06 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FGRCQQBZLWX7UZR37ZS2NYOQJY}

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	2026-07-05T10:57:33.531194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29a22840395daffa663bfe65a6e1d04e1e3bc3ddc196226ca5290db8800fa90d

Aliases

arxiv: 2502.03963 · arxiv_version: 2502.03963v3 · doi: 10.48550/arxiv.2502.03963 · pith_short_12: FGRCQQBZLWX7 · pith_short_16: FGRCQQBZLWX7UZR3 · pith_short_8: FGRCQQBZ

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/FGRCQQBZLWX7UZR37ZS2NYOQJY \
  | 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: 29a22840395daffa663bfe65a6e1d04e1e3bc3ddc196226ca5290db8800fa90d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "108d626841a3458c627ec6fd196f5810d0cc9604de143504076d2da18dff491c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-02-06T10:54:28Z",
    "title_canon_sha256": "e6522749ff781df7d44648bd26fb5cc6fba71c5e2d6d6ecb4b77d5c6ceb6fdd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.03963",
    "kind": "arxiv",
    "version": 3
  }
}