Pith Number

pith:VIWVKJ5O

pith:2025:VIWVKJ5O6IWNXGTD33P5ODMXWE

not attested not anchored not stored refs pending

On the Difficulty of Constructing a Robust and Publicly-Detectable Watermark

Guillermo Ortiz-Jimenez, Jaiden Fairoze, Mel Vecerik, Somesh Jha, Sven Gowal

arxiv:2502.04901 v2 · 2025-02-07 · cs.CR · 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{VIWVKJ5O6IWNXGTD33P5ODMXWE}

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

Authenticated Contradictions from Desynchronized Provenance and Watermarking

Receipt and verification

First computed	2026-07-05T10:54:15.105681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa2d5527aef22cdb9a63dedfd70d97b10de59ff2bf484b612185051ac4163fe5

Aliases

arxiv: 2502.04901 · arxiv_version: 2502.04901v2 · doi: 10.48550/arxiv.2502.04901 · pith_short_12: VIWVKJ5O6IWN · pith_short_16: VIWVKJ5O6IWNXGTD · pith_short_8: VIWVKJ5O

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/VIWVKJ5O6IWNXGTD33P5ODMXWE \
  | 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: aa2d5527aef22cdb9a63dedfd70d97b10de59ff2bf484b612185051ac4163fe5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bf7717784469ae9cc1bcfd2a75679bfe6737e12d5d44a7adaf4588f9eda62a2",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-02-07T13:11:28Z",
    "title_canon_sha256": "5487ee9c5834710778bef54f02d6538bf59d526c6a8f06092947a08754ab200d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.04901",
    "kind": "arxiv",
    "version": 2
  }
}