Pith Number

pith:EEXVYSZA

pith:2025:EEXVYSZAOAYK2Z6WRJ5C2J3WEY

not attested not anchored not stored refs pending

The Failure of Plagiarism Detection in Competitive Programming

Ethan Dickey

arxiv:2505.08244 v1 · 2025-05-13 · cs.CY · 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{EEXVYSZAOAYK2Z6WRJ5C2J3WEY}

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	2026-07-05T11:02:27.141759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

212f5c4b207030ad67d68a7a2d27762610d0649b1ff4629d1ecf828f307f8a67

Aliases

arxiv: 2505.08244 · arxiv_version: 2505.08244v1 · doi: 10.48550/arxiv.2505.08244 · pith_short_12: EEXVYSZAOAYK · pith_short_16: EEXVYSZAOAYK2Z6W · pith_short_8: EEXVYSZA

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/EEXVYSZAOAYK2Z6WRJ5C2J3WEY \
  | 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: 212f5c4b207030ad67d68a7a2d27762610d0649b1ff4629d1ecf828f307f8a67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f3ac8ebf32dd535806981c32ef4e1067dc79c914b53f9890387b5592a19101a",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2025-05-13T05:43:49Z",
    "title_canon_sha256": "09ba43b85ea718e9c07072297868b30e3b8e82fca38a1c44f4450f116d1c5939"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.08244",
    "kind": "arxiv",
    "version": 1
  }
}