Pith Number

pith:63OGGOOC

pith:2025:63OGGOOCNAYKOOQFF5HSIP7SWQ

not attested not anchored not stored refs pending

From Model to Classroom: Evaluating Generated MCQs for Portuguese with Narrative and Difficulty Concerns

Abel Ferreira, Bernardo Leite, Henrique Lopes Cardoso, Isabel Rangel, Lu\'is Abreu, Pedro Pinto, Sandra Monteiro

arxiv:2506.15598 v1 · 2025-06-18 · 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{63OGGOOCNAYKOOQFF5HSIP7SWQ}

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	2026-07-05T11:23:46.761519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6dc6339c26830a73a052f4f243ff2b427fafed480b3ff44a02620ea2b358b54

Aliases

arxiv: 2506.15598 · arxiv_version: 2506.15598v1 · doi: 10.48550/arxiv.2506.15598 · pith_short_12: 63OGGOOCNAYK · pith_short_16: 63OGGOOCNAYKOOQF · pith_short_8: 63OGGOOC

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/63OGGOOCNAYKOOQFF5HSIP7SWQ \
  | 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: f6dc6339c26830a73a052f4f243ff2b427fafed480b3ff44a02620ea2b358b54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e834e5f7378f88125c2f53c619b339a396dae194c5ed96fde37f6e01201bef6",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-06-18T16:19:46Z",
    "title_canon_sha256": "e0cccdf17cf0b056373ab7ab7d904b6e5c9a01bb9a5a881e02563bad3f17afd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.15598",
    "kind": "arxiv",
    "version": 1
  }
}