Pith Number

pith:LOBVJGCN

pith:2025:LOBVJGCNVXHFPDNPVLJLD4RQC2

not attested not anchored not stored refs pending

EDU-NER-2025: Named Entity Recognition in Urdu Educational Texts using XLM-RoBERTa with X (formerly Twitter)

Alexander Gelbukh, Edgardo Manuel Felipe River\'on, Fida Ullah, Grigori Sidorov, Muhammad Ahmad, Muhammad Arif, Muhammad Tayyab Zamir

arxiv:2504.18142 v1 · 2025-04-25 · cs.CL · 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{LOBVJGCNVXHFPDNPVLJLD4RQC2}

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	2026-07-05T10:54:02.635842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b8354984dadce578dafaad2b1f230168c285b4b149fdae8f260be4d92d76900

Aliases

arxiv: 2504.18142 · arxiv_version: 2504.18142v1 · doi: 10.48550/arxiv.2504.18142 · pith_short_12: LOBVJGCNVXHF · pith_short_16: LOBVJGCNVXHFPDNP · pith_short_8: LOBVJGCN

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/LOBVJGCNVXHFPDNPVLJLD4RQC2 \
  | 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: 5b8354984dadce578dafaad2b1f230168c285b4b149fdae8f260be4d92d76900

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b61e37dd7d902c34f934a6ed157bdfb28417efa9df5e6b1235bd23c25e3c6e4d",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-04-25T07:50:58Z",
    "title_canon_sha256": "111e6b66ab04645d880e752cab21d311a2fb6d32b3e09566b371476adfb52037"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.18142",
    "kind": "arxiv",
    "version": 1
  }
}