Pith Number

pith:OQ7K72EH

pith:2024:OQ7K72EHEXMR2V6JDU7VWX4DFL

not attested not anchored not stored refs pending

Optimizing Student Ability Assessment: A Hierarchy Constraint-Aware Cognitive Diagnosis Framework for Educational Contexts

Fei Wang, Kai Zhang, Lina Yang, Qi Liu, Shijin Wang, Shuanghong Shen, Weiyin Gong, Xingying Huo, Xinjie Sun, Yan Zhuang, Zheng Zhang

arxiv:2412.04488 v1 · 2024-11-21 · cs.CY · 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{OQ7K72EHEXMR2V6JDU7VWX4DFL}

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	2026-07-05T09:45:18.394638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

743eafe88725d91d57c91d3f5b5f832ad5cc415973e34470e890de0c5d932932

Aliases

arxiv: 2412.04488 · arxiv_version: 2412.04488v1 · doi: 10.48550/arxiv.2412.04488 · pith_short_12: OQ7K72EHEXMR · pith_short_16: OQ7K72EHEXMR2V6J · pith_short_8: OQ7K72EH

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/OQ7K72EHEXMR2V6JDU7VWX4DFL \
  | 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: 743eafe88725d91d57c91d3f5b5f832ad5cc415973e34470e890de0c5d932932

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3910a579d9545598645adf806c88e2fe682a44b8d532f99805715e0b57237a5a",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2024-11-21T11:37:36Z",
    "title_canon_sha256": "236ad4c58f2d5e78e7a0553bf70e1755d16a1609cdcb74cf357763dbec36e395"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.04488",
    "kind": "arxiv",
    "version": 1
  }
}