Pith Number

pith:EJPKK4PW

pith:2025:EJPKK4PWBFHMQ7UYEVKUHQWLLL

not attested not anchored not stored refs pending

How Do Code Smells Affect Skill Growth in Scratch Novice Programmers?

Gregorio Robles, Jes\'us M. Gonz\'alez-Barahona, Ricardo Hidalgo Arag\'on

arxiv:2507.17314 v2 · 2025-07-23 · 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{EJPKK4PWBFHMQ7UYEVKUHQWLLL}

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	2026-06-24T01:14:21.371271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

225ea571f6094ec87e98255543c2cb5ae955d12a62f9fc9672b56211c361ea0c

Aliases

arxiv: 2507.17314 · arxiv_version: 2507.17314v2 · doi: 10.48550/arxiv.2507.17314 · pith_short_12: EJPKK4PWBFHM · pith_short_16: EJPKK4PWBFHMQ7UY · pith_short_8: EJPKK4PW

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/EJPKK4PWBFHMQ7UYEVKUHQWLLL \
  | 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: 225ea571f6094ec87e98255543c2cb5ae955d12a62f9fc9672b56211c361ea0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4cc6395f27ce5b317abcb5470290c17f48151f79b670c6c8d3828c6e19a20dfb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2025-07-23T08:30:06Z",
    "title_canon_sha256": "7db0eb1c6c3d96fb2f372a0d170a2d277d82803cda2dc489f25fdf9ea37661dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.17314",
    "kind": "arxiv",
    "version": 2
  }
}