Pith Number

pith:V7W644P5

pith:2019:V7W644P52M34CTYBK6EE5E4STU

not attested not anchored not stored refs pending

Neural Cognitive Diagnosis for Intelligent Education Systems

Enhong Chen, Fei Wang, Qi Liu, Shijin Wang, Yu Yin, Yuying Chen, Zai Huang, Zhenya Huang

arxiv:1908.08733 v3 · 2019-08-23 · cs.LG · cs.CY · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V7W644P52M34CTYBK6EE5E4STU}

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	2026-07-05T00:45:08.952496Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afedee71fdd337c14f0157884e93929d2e43e98225034ea5b1b30958ae3abf70

Aliases

arxiv: 1908.08733 · arxiv_version: 1908.08733v3 · doi: 10.48550/arxiv.1908.08733 · pith_short_12: V7W644P52M34 · pith_short_16: V7W644P52M34CTYB · pith_short_8: V7W644P5

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/V7W644P52M34CTYBK6EE5E4STU \
  | 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: afedee71fdd337c14f0157884e93929d2e43e98225034ea5b1b30958ae3abf70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26283dfbc5a355a3342203b38bfaff35ef150402a5f846133f9117bbd7d62f0d",
    "cross_cats_sorted": [
      "cs.CY",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-08-23T09:38:13Z",
    "title_canon_sha256": "6358cc9d3341200ac93fcceb93c37e6bc4d1a4ca28c6e314b955c2943e115ad6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08733",
    "kind": "arxiv",
    "version": 3
  }
}