Pith Number

pith:QBDA5KU5

pith:2026:QBDA5KU5FNO4N6WU6RLKYU2MCG

not attested not anchored not stored refs pending

Towards an Evaluation Methodology for AI in Second Language Education: Lessons Learned from Developing L2-Bench

Ben Knight, Danielle Carvalho, Elizabeth Wonnacott, Isaac Pattis, James Edgell, Wm. Matthew Kennedy

arxiv:2603.20088 v2 · 2026-03-20 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QBDA5KU5FNO4N6WU6RLKYU2MCG}

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.

Cited by

2 papers in Pith

Ceci n'est pas une explication: Evaluating Explanation Failures as Explainability Pitfalls in Language Learning Systems

Receipt and verification

First computed	2026-05-25T02:02:14.516713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80460eaa9d2b5dc6fad4f456ac534c11b774a5e36f3f4492dcc77d41affae5f3

Aliases

arxiv: 2603.20088 · arxiv_version: 2603.20088v2 · doi: 10.48550/arxiv.2603.20088 · pith_short_12: QBDA5KU5FNO4 · pith_short_16: QBDA5KU5FNO4N6WU · pith_short_8: QBDA5KU5

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/QBDA5KU5FNO4N6WU6RLKYU2MCG \
  | 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: 80460eaa9d2b5dc6fad4f456ac534c11b774a5e36f3f4492dcc77d41affae5f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd0a8419f3a6681176846344a39160060c9c9372cab523556eeab689249efafc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2026-03-20T16:13:03Z",
    "title_canon_sha256": "fe16bcdc9387b9c702d7f0ffc8741acf0135f5625a1583c2cb1458bdb8dfd023"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.20088",
    "kind": "arxiv",
    "version": 2
  }
}