Pith Number

pith:DFULGKL3

pith:2024:DFULGKL35GCJWZPOEMOVZOAS6E

not attested not anchored not stored refs pending

Protecting Copyrighted Material with Unique Identifiers in Large Language Model Training

Linchao Zhu, Ruijie Quan, Shuai Zhao, Yi Yang

arxiv:2403.15740 v3 · 2024-03-23 · cs.CL · cs.CR · cs.IR · 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{DFULGKL35GCJWZPOEMOVZOAS6E}

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	2026-07-05T11:37:59.929197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1968b3297be9849b65ee231d5cb812f10cc3630b7d1956064fe7bf3b7e0f21ed

Aliases

arxiv: 2403.15740 · arxiv_version: 2403.15740v3 · doi: 10.48550/arxiv.2403.15740 · pith_short_12: DFULGKL35GCJ · pith_short_16: DFULGKL35GCJWZPO · pith_short_8: DFULGKL3

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/DFULGKL35GCJWZPOEMOVZOAS6E \
  | 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: 1968b3297be9849b65ee231d5cb812f10cc3630b7d1956064fe7bf3b7e0f21ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "102b66b893e00c7d7d839cbbea97a0f997506bceff62468f4e1c46d7f7bf664d",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2024-03-23T06:36:32Z",
    "title_canon_sha256": "9fb7c4f68c4a0766cbd9dc9147c4bb699ee736f2889ea992ab645e57f0989c1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.15740",
    "kind": "arxiv",
    "version": 3
  }
}