Pith Number

pith:YTONFD4S

pith:2019:YTONFD4SQ2KM62XQLNGKYTS6UG

not attested not anchored not stored refs pending

KBQA: Learning Question Answering over QA Corpora and Knowledge Bases

Haixun Wang, Seung-won Hwang, Wanyun Cui, Wei Wang, Yanghua Xiao, Yangqiu Song

arxiv:1903.02419 v1 · 2019-03-06 · 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{YTONFD4SQ2KM62XQLNGKYTS6UG}

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	2026-05-17T23:51:55.363864Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4dcd28f928694cf6af05b4cac4e5ea1a6c39401bec9bd209f3da2c58590ebeb

Aliases

arxiv: 1903.02419 · arxiv_version: 1903.02419v1 · doi: 10.48550/arxiv.1903.02419 · pith_short_12: YTONFD4SQ2KM · pith_short_16: YTONFD4SQ2KM62XQ · pith_short_8: YTONFD4S

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/YTONFD4SQ2KM62XQLNGKYTS6UG \
  | 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: c4dcd28f928694cf6af05b4cac4e5ea1a6c39401bec9bd209f3da2c58590ebeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb5da42a2da5c118b8f1f134502ae70e73518ec3efb3f760134b5bd832758220",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-03-06T14:38:28Z",
    "title_canon_sha256": "e8fd9a65659c14dd1f8d27b09fa43c18c8870d87c5d16f1d590eee2e7ee63758"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.02419",
    "kind": "arxiv",
    "version": 1
  }
}