Pith Number

pith:MM5OZWRN

pith:2020:MM5OZWRNB5VABJ2RPZU55WNZJO

not attested not anchored not stored refs pending

Automated Personalized Feedback Improves Learning Gains in an Intelligent Tutoring System

Dung Do Vu, Ekaterina Kochmar, Iulian Vlad Serban, Joelle Pineau, Robert Belfer, Varun Gupta

arxiv:2005.02431 v2 · 2020-05-05 · 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{MM5OZWRNB5VABJ2RPZU55WNZJO}

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	2026-07-05T01:01:24.919139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

633aecda2d0f6a00a7517e69ded9b94bb74d4e4f1761a68392ab7b4f3cff5034

Aliases

arxiv: 2005.02431 · arxiv_version: 2005.02431v2 · doi: 10.48550/arxiv.2005.02431 · pith_short_12: MM5OZWRNB5VA · pith_short_16: MM5OZWRNB5VABJ2R · pith_short_8: MM5OZWRN

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/MM5OZWRNB5VABJ2RPZU55WNZJO \
  | 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: 633aecda2d0f6a00a7517e69ded9b94bb74d4e4f1761a68392ab7b4f3cff5034

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77b22edb541541aa19fcd35504b701aea4a93a3ce03771cb618e55b8d1b6c417",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-05-05T18:30:08Z",
    "title_canon_sha256": "31bec910a7704d4669d912ce6a8040e90f134fa89338d404d1794ea867a36c1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.02431",
    "kind": "arxiv",
    "version": 2
  }
}