Pith Number

pith:OTDB4X7P

pith:2020:OTDB4X7PXIQTPNL3637HDZKC6M

not attested not anchored not stored refs pending

Neural Multi-Task Learning for Teacher Question Detection in Online Classrooms

Gale Yan Huang, Guoliang Li, Haochen Liu, Jiahao Chen, Jiliang Tang, Songfan Yang, Weiping Fu, Wenbiao Ding, Zitao Liu

arxiv:2005.07845 v1 · 2020-05-16 · cs.CL · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OTDB4X7PXIQTPNL3637HDZKC6M}

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	2026-07-05T01:03:26.632094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74c61e5fefba2137b57bf6fe71e542f33dd5ea36c8b3df03afde0d7edb4c36a8

Aliases

arxiv: 2005.07845 · arxiv_version: 2005.07845v1 · doi: 10.48550/arxiv.2005.07845 · pith_short_12: OTDB4X7PXIQT · pith_short_16: OTDB4X7PXIQTPNL3 · pith_short_8: OTDB4X7P

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/OTDB4X7PXIQTPNL3637HDZKC6M \
  | 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: 74c61e5fefba2137b57bf6fe71e542f33dd5ea36c8b3df03afde0d7edb4c36a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "517a276e3be471bfeaf1a865d0a167e45e391b39c2ac5b0b205e6ca94752831a",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-05-16T02:17:04Z",
    "title_canon_sha256": "2762d0f0d296c5a16d45dc148f47047f4e401d02582f84cb3d0655c70aeb5811"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.07845",
    "kind": "arxiv",
    "version": 1
  }
}