Pith Number

pith:W46SXXQP

pith:2025:W46SXXQPQGKWDL3XZRUQRYZMQO

not attested not anchored not stored refs pending

PhantomHunter: Detecting Unseen Privately-Tuned LLM-Generated Text via Family-Aware Learning

Beizhe Hu, Chaoxi Xu, Hao Mi, Juan Cao, Qiang Sheng, Yehan Yang, Yuhui Shi

arxiv:2506.15683 v1 · 2025-06-18 · cs.CL · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W46SXXQPQGKWDL3XZRUQRYZMQO}

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	2026-07-05T11:23:48.450026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b73d2bde0f819561af77cc6908e32c83a4eddaa0c0cf2da4cfc012dcf085cd93

Aliases

arxiv: 2506.15683 · arxiv_version: 2506.15683v1 · doi: 10.48550/arxiv.2506.15683 · pith_short_12: W46SXXQPQGKW · pith_short_16: W46SXXQPQGKWDL3X · pith_short_8: W46SXXQP

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/W46SXXQPQGKWDL3XZRUQRYZMQO \
  | 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: b73d2bde0f819561af77cc6908e32c83a4eddaa0c0cf2da4cfc012dcf085cd93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d19812547a38af30a44ef50abc2363bc35243e99dcf4c3c578878c35fe42a7ba",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-06-18T17:59:58Z",
    "title_canon_sha256": "80c3f67fd66b5c4626ba2af7feb92e3104cb168ec578c4548b229639a0c3a946"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.15683",
    "kind": "arxiv",
    "version": 1
  }
}