Pith Number

pith:EFIRRSZ4

pith:2025:EFIRRSZ4QIC7UE7FU6C374ZFMJ

not attested not anchored not stored refs pending

From scratch to silver: Creating trustworthy training data for patent-SDG classification using Large Language Models

Grazia Sveva Ascione, Nicol\`o Tamagnone

arxiv:2509.09303 v1 · 2025-09-11 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EFIRRSZ4QIC7UE7FU6C374ZFMJ}

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	2026-07-05T12:09:33.580442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

215118cb3c8205fa13e5a785bff3256251eb7e7272fd3dc8e0d75162f50d5179

Aliases

arxiv: 2509.09303 · arxiv_version: 2509.09303v1 · doi: 10.48550/arxiv.2509.09303 · pith_short_12: EFIRRSZ4QIC7 · pith_short_16: EFIRRSZ4QIC7UE7F · pith_short_8: EFIRRSZ4

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/EFIRRSZ4QIC7UE7FU6C374ZFMJ \
  | 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: 215118cb3c8205fa13e5a785bff3256251eb7e7272fd3dc8e0d75162f50d5179

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "059fe7e3826c4a77e1c83601a31e6379f9b19868339def616aa6a4c088ee9ee9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-09-11T09:44:16Z",
    "title_canon_sha256": "d5b83ee40844d8b26441d43d282d9c51433f7d9fea091d3cf99505c1df7910f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.09303",
    "kind": "arxiv",
    "version": 1
  }
}