Pith Number

pith:EY2H56KD

pith:2018:EY2H56KD6FSBHLB7V46R3OI4BW

not attested not anchored not stored refs pending

Multi-Passage Machine Reading Comprehension with Cross-Passage Answer Verification

HaiFeng Wang, Hua Wu, Jing Liu, Kai Liu, Sujian Li, Wei He, Yajuan Lyu, Yizhong Wang

arxiv:1805.02220 v2 · 2018-05-06 · 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{EY2H56KD6FSBHLB7V46R3OI4BW}

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	2026-05-18T00:16:19.095506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26347ef943f16413ac3faf3d1db91c0d897eb068095de91a916769d7a8bd0a39

Aliases

arxiv: 1805.02220 · arxiv_version: 1805.02220v2 · doi: 10.48550/arxiv.1805.02220 · pith_short_12: EY2H56KD6FSB · pith_short_16: EY2H56KD6FSBHLB7 · pith_short_8: EY2H56KD

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/EY2H56KD6FSBHLB7V46R3OI4BW \
  | 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: 26347ef943f16413ac3faf3d1db91c0d897eb068095de91a916769d7a8bd0a39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b35139badad7749e77848670f2aa4ae0f87bea965c0f0908727b74a9a35cf4d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-05-06T14:26:35Z",
    "title_canon_sha256": "32fae8cb7c80876cc1ea06c39c6b3c0c38be4437d031eeda9c5fe1d288b411d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02220",
    "kind": "arxiv",
    "version": 2
  }
}