Pith Number

pith:VPEVNV4I

pith:2023:VPEVNV4ITUWVB4AS3SVFPEQKPE

not attested not anchored not stored refs pending

Detecting Code Quality Issues in Pre-written Templates of Programming Tasks in Online Courses

Anastasiia Birillo, Elizaveta Artser, Hieke Keuning, Maria Tigina, Nikolay Vyahhi, Timofey Bryksin, Yaroslav Golubev

arxiv:2304.12376 v1 · 2023-04-24 · 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{VPEVNV4ITUWVB4AS3SVFPEQKPE}

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	2026-07-05T06:04:16.044468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abc956d7889d2d50f012dcaa57920a79016cb35683c0a7fdd02c86428bb31222

Aliases

arxiv: 2304.12376 · arxiv_version: 2304.12376v1 · doi: 10.48550/arxiv.2304.12376 · pith_short_12: VPEVNV4ITUWV · pith_short_16: VPEVNV4ITUWVB4AS · pith_short_8: VPEVNV4I

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/VPEVNV4ITUWVB4AS3SVFPEQKPE \
  | 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: abc956d7889d2d50f012dcaa57920a79016cb35683c0a7fdd02c86428bb31222

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1eec0b7f9cf5db6a89ff2774079928c67477560c83c512eb17825ca468f6d25e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2023-04-24T18:13:27Z",
    "title_canon_sha256": "a5310db4d485c5171f765bd3891261e1ea64a7683a50faf1ce23d83831873730"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.12376",
    "kind": "arxiv",
    "version": 1
  }
}