Pith Number

pith:NCFCFMP4

pith:2018:NCFCFMP4J3W3ZEN3MNCJK2HEXS

not attested not anchored not stored refs pending

Studio Ousia's Quiz Bowl Question Answering System

Hiroyuki Shindo, Ikuya Yamada, Ryuji Tamaki, Yoshiyasu Takefuji

arxiv:1803.08652 v1 · 2018-03-23 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NCFCFMP4J3W3ZEN3MNCJK2HEXS}

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	2026-05-18T00:20:18.958903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

688a22b1fc4eedbc91bb63449568e4bcad710b00e6291b05bab76a46ca0cc0f9

Aliases

arxiv: 1803.08652 · arxiv_version: 1803.08652v1 · doi: 10.48550/arxiv.1803.08652 · pith_short_12: NCFCFMP4J3W3 · pith_short_16: NCFCFMP4J3W3ZEN3 · pith_short_8: NCFCFMP4

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/NCFCFMP4J3W3ZEN3MNCJK2HEXS \
  | 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: 688a22b1fc4eedbc91bb63449568e4bcad710b00e6291b05bab76a46ca0cc0f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34dc1a8aa082ee8bf9b7cb48280d2e870137218f6ce83a1abda4c9b762a4d537",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-03-23T04:15:07Z",
    "title_canon_sha256": "8848b25864160c51cc1d19c90238d8e9e3b3112ba849250b1168c67772253d72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08652",
    "kind": "arxiv",
    "version": 1
  }
}