Pith Number

pith:O2U4ZQ4D

pith:2025:O2U4ZQ4DVQMRSG6IBZNXHKI5JN

not attested not anchored not stored refs pending

SimMark: A Robust Sentence-Level Similarity-Based Watermarking Algorithm for Large Language Models

Amirhossein Dabiriaghdam, Lele Wang

arxiv:2502.02787 v2 · 2025-02-05 · cs.CL · cs.CR · cs.CY · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2U4ZQ4DVQMRSG6IBZNXHKI5JN}

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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

Global Sketch-Based Watermarking for Diffusion Language Models

SAMark: A Self-Anchored Text Watermarking with Paragraph-Level Paraphrase Robustness

R-CoT: A Reasoning-Layer Watermark via Redundant Chain-of-Thought in Large Language Models

Receipt and verification

First computed	2026-07-05T12:09:12.847191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76a9ccc383ac19191bc80e5b73a91d4b4bf125097af9f5dc7b3ae5b6da144c3e

Aliases

arxiv: 2502.02787 · arxiv_version: 2502.02787v2 · doi: 10.48550/arxiv.2502.02787 · pith_short_12: O2U4ZQ4DVQMR · pith_short_16: O2U4ZQ4DVQMRSG6I · pith_short_8: O2U4ZQ4D

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/O2U4ZQ4DVQMRSG6IBZNXHKI5JN \
  | 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: 76a9ccc383ac19191bc80e5b73a91d4b4bf125097af9f5dc7b3ae5b6da144c3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "700d61b33023a5a09c25e3f8d68e8dde1c4fa95b466ad08670a7c12f3c8b7665",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.CY",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-02-05T00:21:01Z",
    "title_canon_sha256": "551945bda66c65087e5744697473966e7d77013e16c56a1732c0abb038f6150e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.02787",
    "kind": "arxiv",
    "version": 2
  }
}