Pith Number

pith:X4RLKOE5

pith:2025:X4RLKOE5XVPERC6XITDBLIAOVQ

not attested not anchored not stored refs pending

RoFL: Robust Fingerprinting of Language Models

Chuan Guo, Junfeng Yang, Laurens van der Maaten, Yun-Yun Tsai

arxiv:2505.12682 v1 · 2025-05-19 · 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{X4RLKOE5XVPERC6XITDBLIAOVQ}

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.

Cited by

5 papers in Pith

FLIPS: Instance-Fingerprinting for LLMs via Pseudo-random Sequences

KBF: Knowledge Boundary as Fingerprint for Language Model and Black-Box API Auditing

LLM DNA: Tracing Model Evolution via Functional Representations

SeedPrints: Fingerprints Can Even Tell Which Seed Your Large Language Model Was Trained From

Receipt and verification

First computed	2026-07-05T11:05:08.126085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf22b5389dbd5e488bd744c615a00eac2d2d5f99d62acc19b73ff3447db9e18e

Aliases

arxiv: 2505.12682 · arxiv_version: 2505.12682v1 · doi: 10.48550/arxiv.2505.12682 · pith_short_12: X4RLKOE5XVPE · pith_short_16: X4RLKOE5XVPERC6X · pith_short_8: X4RLKOE5

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/X4RLKOE5XVPERC6XITDBLIAOVQ \
  | 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: bf22b5389dbd5e488bd744c615a00eac2d2d5f99d62acc19b73ff3447db9e18e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b96f006c1e8c848838987e4db08751174a9c758555f86046d211f236fae8a69f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-05-19T04:00:23Z",
    "title_canon_sha256": "977067997cfe7037dce66adafc85544f6cc38049d157490f534424a4e74fc778"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.12682",
    "kind": "arxiv",
    "version": 1
  }
}