Pith Number

pith:7H7MQ5DU

pith:2025:7H7MQ5DUNQPWP7XXXUSIPLJIBJ

not attested not anchored not stored refs pending

LLM Watermark Evasion via Bias Inversion

Jeongyeon Hwang, Jungseul Ok, Sangdon Park

arxiv:2509.23019 v5 · 2025-09-27 · 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{7H7MQ5DUNQPWP7XXXUSIPLJIBJ}

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	2026-05-28T02:04:43.062134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9fec874746c1f67fef7bd2487ad280a77db848ead1dfadc75684df94f40f766

Aliases

arxiv: 2509.23019 · arxiv_version: 2509.23019v5 · doi: 10.48550/arxiv.2509.23019 · pith_short_12: 7H7MQ5DUNQPW · pith_short_16: 7H7MQ5DUNQPWP7XX · pith_short_8: 7H7MQ5DU

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/7H7MQ5DUNQPWP7XXXUSIPLJIBJ \
  | 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: f9fec874746c1f67fef7bd2487ad280a77db848ead1dfadc75684df94f40f766

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "add20682d93aa14b31bc35f3fa1099174953de0aea04358e507a20cd57bda442",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-09-27T00:24:57Z",
    "title_canon_sha256": "73aa3ff35d63d25a8b0992a8995a9c69716f1200aa3ff2b73b5124fd3a526794"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.23019",
    "kind": "arxiv",
    "version": 5
  }
}