Pith Number

pith:3KYYQ7F2

pith:2026:3KYYQ7F26USHKHM4AMVU662EI3

not attested not anchored not stored refs pending

NL2Scratch: An Executable Benchmark and Evaluation for Block-Based Programming

Alexandre Ballenghien, April Yi Wang, Heejin Do, Yang Wu

arxiv:2606.22061 v1 · 2026-06-20 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3KYYQ7F26USHKHM4AMVU662EI3}

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	2026-06-23T02:13:06.716353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dab1887cbaf524751d9c032b4f7b4446fdba042130975bf15bdc6bd3093677a0

Aliases

arxiv: 2606.22061 · arxiv_version: 2606.22061v1 · doi: 10.48550/arxiv.2606.22061 · pith_short_12: 3KYYQ7F26USH · pith_short_16: 3KYYQ7F26USHKHM4 · pith_short_8: 3KYYQ7F2

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/3KYYQ7F26USHKHM4AMVU662EI3 \
  | 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: dab1887cbaf524751d9c032b4f7b4446fdba042130975bf15bdc6bd3093677a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c5f45b78fbec5081199b27b5bcf0048e96e612d6fbd97fed15a5d93844c56cf",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-06-20T14:22:59Z",
    "title_canon_sha256": "6d4b45b9d28a5e1d7b902b409ef634c9343c77aa5fb10ddca51a7c542a3257c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.22061",
    "kind": "arxiv",
    "version": 1
  }
}