Pith Number

pith:IBJU3X6Q

pith:2025:IBJU3X6QFJHRE65I2EVUJJ7SNV

not attested not anchored not stored refs pending

Invisible Entropy: Towards Safe and Efficient Low-Entropy LLM Watermarking

Kexin Huang, Tianle Gu, Xiangliang Zhang, Xiuying Chen, Yuanqi Yao, Yujiu Yang, Zongqi Wang

arxiv:2505.14112 v1 · 2025-05-20 · cs.CL · 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{IBJU3X6QFJHRE65I2EVUJJ7SNV}

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

1 paper in Pith

WorldMark: A Plug-and-Play World Knowledge Interface for Cross-Host Language Model Watermarking

Receipt and verification

First computed	2026-07-05T11:05:56.406406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40534ddfd02a4f127ba8d12b44a7f26d67e609b5e70dccf1e6b50c6d46131381

Aliases

arxiv: 2505.14112 · arxiv_version: 2505.14112v1 · doi: 10.48550/arxiv.2505.14112 · pith_short_12: IBJU3X6QFJHR · pith_short_16: IBJU3X6QFJHRE65I · pith_short_8: IBJU3X6Q

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/IBJU3X6QFJHRE65I2EVUJJ7SNV \
  | 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: 40534ddfd02a4f127ba8d12b44a7f26d67e609b5e70dccf1e6b50c6d46131381

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6faa519780de62102705e9c9af7ce5f8cbeb86cce4b5caf33756f5a8a6f8f615",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-05-20T09:19:06Z",
    "title_canon_sha256": "1ffb093e6610738a8ff20ef703cf8e601a4828ca39c42c39a12e8c724e42dd3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.14112",
    "kind": "arxiv",
    "version": 1
  }
}