Pith Number

pith:ZE7PI7TH

pith:2026:ZE7PI7THLERU3NNPOXNFM6W7VQ

not attested not anchored not stored refs pending

Toward Stronger Code Watermarking: A Grammar-Driven Approach to Optimizing the Trade-off Between Quality and Detectability

Aiwei Liu, Licheng Yu, Songze Li

arxiv:2607.10210 v1 · 2026-07-11 · cs.CR · 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{ZE7PI7THLERU3NNPOXNFM6W7VQ}

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	2026-07-14T01:20:30.908202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c93ef47e6759234db5af75da567adfac0d3614dc86bdb09409369261174495cd

Aliases

arxiv: 2607.10210 · arxiv_version: 2607.10210v1 · doi: 10.48550/arxiv.2607.10210 · pith_short_12: ZE7PI7THLERU · pith_short_16: ZE7PI7THLERU3NNP · pith_short_8: ZE7PI7TH

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/ZE7PI7THLERU3NNPOXNFM6W7VQ \
  | 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: c93ef47e6759234db5af75da567adfac0d3614dc86bdb09409369261174495cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4911b23584d57a4281b2b439c1454ee738ce4329b9afe57d35b58327e5eca125",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-07-11T08:43:15Z",
    "title_canon_sha256": "ef1e5fd69f29c13fa41b4f00cddae60792b4fce959e59c7823f0f2a4463fc2d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.10210",
    "kind": "arxiv",
    "version": 1
  }
}