Pith Number

pith:NU5IM5UI

pith:2019:NU5IM5UI5BPP4BMMX6QVVV5K5A

not attested not anchored not stored refs pending

Option Comparison Network for Multiple-choice Reading Comprehension

Jie Zhou, Peng Li, Qiu Ran, Weiwei Hu

arxiv:1903.03033 v1 · 2019-03-07 · 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{NU5IM5UI5BPP4BMMX6QVVV5K5A}

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	2026-05-17T23:51:50.360657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d3a867688e85efe058cbfa15ad7aae8310abf11d115eb49d7ce5144d82fdae5

Aliases

arxiv: 1903.03033 · arxiv_version: 1903.03033v1 · doi: 10.48550/arxiv.1903.03033 · pith_short_12: NU5IM5UI5BPP · pith_short_16: NU5IM5UI5BPP4BMM · pith_short_8: NU5IM5UI

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/NU5IM5UI5BPP4BMMX6QVVV5K5A \
  | 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: 6d3a867688e85efe058cbfa15ad7aae8310abf11d115eb49d7ce5144d82fdae5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3aa151840f1503b6801f25bdb87e4533f54a1bb0dcc4498051de25b439f8b7dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-03-07T16:43:50Z",
    "title_canon_sha256": "90f65bd400388d0fb415549f6ad71d2112a2b09af43c4851ccf7a9026584970d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.03033",
    "kind": "arxiv",
    "version": 1
  }
}