Pith Number

pith:JMW6GJEY

pith:2019:JMW6GJEYWBQ5EBIPI4X7RYHFJV

not attested not anchored not stored refs pending

Machine Reading Comprehension: a Literature Review

An Yang, Sujian Li, Xin Zhang, Yizhong Wang

arxiv:1907.01686 v1 · 2019-06-30 · 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{JMW6GJEYWBQ5EBIPI4X7RYHFJV}

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	2026-05-17T23:41:35.484632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b2de32498b061d2050f472ff8e0e54d76c117f71d85120195a225a3a79c7fee

Aliases

arxiv: 1907.01686 · arxiv_version: 1907.01686v1 · doi: 10.48550/arxiv.1907.01686 · pith_short_12: JMW6GJEYWBQ5 · pith_short_16: JMW6GJEYWBQ5EBIP · pith_short_8: JMW6GJEY

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/JMW6GJEYWBQ5EBIPI4X7RYHFJV \
  | 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: 4b2de32498b061d2050f472ff8e0e54d76c117f71d85120195a225a3a79c7fee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "162ee54aecb469d6e9e76b99b7407829fcadf1f64c0513b2999eaef3141ef9fc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-06-30T09:18:31Z",
    "title_canon_sha256": "8804bb41da84ab72693223fca2a490b4905c09ec7d7f228246aad6a5f2905f32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01686",
    "kind": "arxiv",
    "version": 1
  }
}