Pith Number

pith:ZTE3W47R

pith:2025:ZTE3W47RLDYTMSSRN4W5HGYTQR

not attested not anchored not stored refs pending

Improved Unbiased Watermark for Large Language Models

Heng Huang, Junfeng Guo, Ruibo Chen, Yihan Wu

arxiv:2502.11268 v3 · 2025-02-16 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZTE3W47RLDYTMSSRN4W5HGYTQR}

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

3 papers in Pith

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AgentMark: Utility-Preserving Behavioral Watermarking for Agents

Beyond A Fixed Seal: Adaptive Stealing Watermark in Large Language Models

Receipt and verification

First computed	2026-07-05T11:49:07.088299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccc9bb73f158f1364a516f2dd39b13845d0560fb0cb1186e32fd598028d8d7bf

Aliases

arxiv: 2502.11268 · arxiv_version: 2502.11268v3 · doi: 10.48550/arxiv.2502.11268 · pith_short_12: ZTE3W47RLDYT · pith_short_16: ZTE3W47RLDYTMSSR · pith_short_8: ZTE3W47R

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/ZTE3W47RLDYTMSSRN4W5HGYTQR \
  | 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: ccc9bb73f158f1364a516f2dd39b13845d0560fb0cb1186e32fd598028d8d7bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d40c5f9e1d451ad907cbb3726bfe8877aa68912cfbc553fb698f7ac648cf42b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-02-16T21:02:36Z",
    "title_canon_sha256": "9089a0abcdffa644516653026936ba2dfda35767f4269ce586b751bb91719919"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.11268",
    "kind": "arxiv",
    "version": 3
  }
}