Pith Number

pith:CA3ZT7TY

pith:2018:CA3ZT7TY57JEMOOAANW4QR4AMC

not attested not anchored not stored refs pending

A Quantitative Evaluation of Natural Language Question Interpretation for Question Answering Systems

Jin-Dong Kim, Takuto Asakura, Toshihisa Takagi, Yasunori Yamamoto, Yuka Tateisi

arxiv:1809.07485 v1 · 2018-09-20 · 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{CA3ZT7TY57JEMOOAANW4QR4AMC}

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	2026-05-18T00:05:16.147264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

103799fe78efd24639c0036dc847806092e73442ce4643ec78011f9b3de33167

Aliases

arxiv: 1809.07485 · arxiv_version: 1809.07485v1 · doi: 10.48550/arxiv.1809.07485 · pith_short_12: CA3ZT7TY57JE · pith_short_16: CA3ZT7TY57JEMOOA · pith_short_8: CA3ZT7TY

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/CA3ZT7TY57JEMOOAANW4QR4AMC \
  | 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: 103799fe78efd24639c0036dc847806092e73442ce4643ec78011f9b3de33167

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a34dc9515f897ec0bbc1269b2ae2e98fc2c32c445add70b6b42c8672048fecc3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-09-20T05:49:40Z",
    "title_canon_sha256": "56dbc0ef60bcc9d2027bb3b85c34293f4e7ed9a6900f48da0a420c2179f68293"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07485",
    "kind": "arxiv",
    "version": 1
  }
}