Pith Number

pith:ZQ7EFNMP

pith:2025:ZQ7EFNMPREAFLFF76DCA7SHH2I

not attested not anchored not stored refs pending

PromptCOS: Towards Content-only System Prompt Copyright Auditing for LLMs

Dacheng Tao, Enhao Huang, Hongwei Yao, Shuo Shao, Yiming Li, Yuchen Yang, Yuyi Wang, Zhan Qin, Zhibo Wang

arxiv:2509.03117 v3 · 2025-09-03 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZQ7EFNMPREAFLFF76DCA7SHH2I}

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

2 papers in Pith

PragLocker: Protecting Agent Intellectual Property in Untrusted Deployments via Non-Portable Prompts

Receipt and verification

First computed	2026-05-25T02:02:08.735850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc3e42b58f89005594bff0c40fc8e7d202766fa8c57cd4613c14378254537448

Aliases

arxiv: 2509.03117 · arxiv_version: 2509.03117v3 · doi: 10.48550/arxiv.2509.03117 · pith_short_12: ZQ7EFNMPREAF · pith_short_16: ZQ7EFNMPREAFLFF7 · pith_short_8: ZQ7EFNMP

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/ZQ7EFNMPREAFLFF76DCA7SHH2I \
  | 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: cc3e42b58f89005594bff0c40fc8e7d202766fa8c57cd4613c14378254537448

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f66b93ec57b51943834480b3dbad32302f6548ba6d18ef0bc559158ce12990e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-09-03T08:19:40Z",
    "title_canon_sha256": "caaea8ace01c0b9cd49b0266bd9d7366b83e7ee5e0286982e609c3b77f1d00a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.03117",
    "kind": "arxiv",
    "version": 3
  }
}