Pith Number

pith:ITFUGWS7

pith:2025:ITFUGWS7Y4A7NXYUJRXJ4ZXQVA

not attested not anchored not stored refs pending

Optimized Couplings for Watermarking Large Language Models

Carol Xuan Long, Claudio Mayrink Verdun, Dor Tsur, Flavio P. Calmon, Haim Permuter, Hsiang Hsu

arxiv:2505.08878 v1 · 2025-05-13 · cs.CR · cs.AI · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ITFUGWS7Y4A7NXYUJRXJ4ZXQVA}

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	2026-07-05T11:02:46.205536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44cb435a5fc701f6df144c6e9e66f0a80b5fb041e3d169c1b7e1b146eae75346

Aliases

arxiv: 2505.08878 · arxiv_version: 2505.08878v1 · doi: 10.48550/arxiv.2505.08878 · pith_short_12: ITFUGWS7Y4A7 · pith_short_16: ITFUGWS7Y4A7NXYU · pith_short_8: ITFUGWS7

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/ITFUGWS7Y4A7NXYUJRXJ4ZXQVA \
  | 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: 44cb435a5fc701f6df144c6e9e66f0a80b5fb041e3d169c1b7e1b146eae75346

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0159d9a04b87532ca5732b8b74a681576a7237da532125b2141c3bb87806e259",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IT",
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-05-13T18:08:12Z",
    "title_canon_sha256": "db7639b973d0b8638113e911a395f7d7e76fb71cf6024ea5ac1d05fd7456d4ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.08878",
    "kind": "arxiv",
    "version": 1
  }
}