Pith Number

pith:UNKVRDCW

pith:2024:UNKVRDCWEZGN2VZZHAL634LXKK

not attested not anchored not stored refs pending

Hey, That's My Model! Introducing Chain & Hash, An LLM Fingerprinting Technique

Ahmed Salem, Mark Russinovich, Yanan Cai

arxiv:2407.10887 v4 · 2024-07-15 · cs.CR · 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{UNKVRDCWEZGN2VZZHAL634LXKK}

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

6 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

Prompt2Fingerprint: Plug-and-Play LLM Fingerprinting via Text-to-Weight Generation

Position: LLM Watermarking Should Align Stakeholders' Incentives for Practical Adoption

Receipt and verification

First computed	2026-07-02T01:17:11.279206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a355588c56264cdd57393817edf17752a4aef814c3133b72b8e7b7bf3b6ab2f8

Aliases

arxiv: 2407.10887 · arxiv_version: 2407.10887v4 · doi: 10.48550/arxiv.2407.10887 · pith_short_12: UNKVRDCWEZGN · pith_short_16: UNKVRDCWEZGN2VZZ · pith_short_8: UNKVRDCW

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/UNKVRDCWEZGN2VZZHAL634LXKK \
  | 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: a355588c56264cdd57393817edf17752a4aef814c3133b72b8e7b7bf3b6ab2f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39939327167a7a95461587e607d8ce1a3be0dd6d15da67f19889f9dc958f370b",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2024-07-15T16:38:56Z",
    "title_canon_sha256": "c66517f9c2ec033fcc2362f4674c6121a1e3febd61470a3185f4c0a7cbc2168f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.10887",
    "kind": "arxiv",
    "version": 4
  }
}