Pith Number

pith:F4VD3EWQ

pith:2026:F4VD3EWQUJ6YRPE3HI3H3RNLBQ

not attested not anchored not stored refs pending

Detection of LLM-assisted Code Plagiarism Using k-gram Software Birthmarks

Akito Monden, Haruaki Tamada, Hiroki Inayoshi, Masateru Tsunoda, Nikolay Fedorov

arxiv:2607.03014 v1 · 2026-07-03 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F4VD3EWQUJ6YRPE3HI3H3RNLBQ}

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	2026-07-07T01:16:39.767018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f2a3d92d0a27d88bc9b3a367dc5ab0c075d2fc2e7fe9bcf7b865896c772d123

Aliases

arxiv: 2607.03014 · arxiv_version: 2607.03014v1 · doi: 10.48550/arxiv.2607.03014 · pith_short_12: F4VD3EWQUJ6Y · pith_short_16: F4VD3EWQUJ6YRPE3 · pith_short_8: F4VD3EWQ

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/F4VD3EWQUJ6YRPE3HI3H3RNLBQ \
  | 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: 2f2a3d92d0a27d88bc9b3a367dc5ab0c075d2fc2e7fe9bcf7b865896c772d123

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "241e83664bd4565d207c87e716d943875b920394ea8feec4ab2d8b68407b78fd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-07-03T06:49:26Z",
    "title_canon_sha256": "4a53d091d8c5ed223fa8f3aa553742e44258772efc9069af1c7fa3d0da364e04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.03014",
    "kind": "arxiv",
    "version": 1
  }
}