Pith Number

pith:CJ3O6V3O

pith:2025:CJ3O6V3OEX73PRSR7C72CSYBRX

not attested not anchored not stored refs pending

Can LLM Watermarks Robustly Prevent Unauthorized Knowledge Distillation?

Aiwei Liu, Irwin King, Leyi Pan, Lijie Wen, Philip S. Yu, Shiyu Huang, Xuming Hu, Yijian Lu

arxiv:2502.11598 v2 · 2025-02-17 · 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{CJ3O6V3OEX73PRSR7C72CSYBRX}

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	2026-07-05T11:09:08.586418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1276ef576e25ffb7c651f8bfa14b018de596884580d024b94376443510636da8

Aliases

arxiv: 2502.11598 · arxiv_version: 2502.11598v2 · doi: 10.48550/arxiv.2502.11598 · pith_short_12: CJ3O6V3OEX73 · pith_short_16: CJ3O6V3OEX73PRSR · pith_short_8: CJ3O6V3O

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/CJ3O6V3OEX73PRSR7C72CSYBRX \
  | 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: 1276ef576e25ffb7c651f8bfa14b018de596884580d024b94376443510636da8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90109b9507d0bc4647ce78578dcee4bc35e29e3a8c8ae417276a081e3e8bf293",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-02-17T09:34:19Z",
    "title_canon_sha256": "eece5c1acc64d880d4507988111d378e7be2c1bd8d10d2e05d6f4ba0a09e9707"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.11598",
    "kind": "arxiv",
    "version": 2
  }
}