Pith Number

pith:ZPR7O2KT

pith:2019:ZPR7O2KTDKI6WBEIGP5PIX4ZSF

not attested not anchored not stored refs pending

QAInfomax: Learning Robust Question Answering System by Mutual Information Maximization

Yi-Ting Yeh, Yun-Nung Chen

arxiv:1909.00215 v1 · 2019-08-31 · cs.CL · cs.AI · cs.LG · 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{ZPR7O2KTDKI6WBEIGP5PIX4ZSF}

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	2026-07-05T00:01:06.885889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbe3f769531a91eb048833faf45f99916439ab8686e3ebc2ca70f3bab6bdf085

Aliases

arxiv: 1909.00215 · arxiv_version: 1909.00215v1 · doi: 10.48550/arxiv.1909.00215 · pith_short_12: ZPR7O2KTDKI6 · pith_short_16: ZPR7O2KTDKI6WBEI · pith_short_8: ZPR7O2KT

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/ZPR7O2KTDKI6WBEIGP5PIX4ZSF \
  | 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: cbe3f769531a91eb048833faf45f99916439ab8686e3ebc2ca70f3bab6bdf085

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8be819d60955238674433416d0d90fa71c6db9df6a1d3921cf368862f427dc3",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-08-31T13:50:28Z",
    "title_canon_sha256": "b77c2f166b042365b7c91ce66f9d73ecb79c36b650ed9ec99c7eb684a377475b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.00215",
    "kind": "arxiv",
    "version": 1
  }
}