Pith Number

pith:WS2LSC43

pith:2020:WS2LSC4354QQKUU4I4WN3HL3IR

not attested not anchored not stored refs pending

XTQA: Span-Level Explanations of the Textbook Question Answering

Jie Ma, Jun Liu, Pinghui Wang, Qi Chai, Qinghua Zheng, Qingyu Yin

arxiv:2011.12662 v4 · 2020-11-25 · cs.CL · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WS2LSC4354QQKUU4I4WN3HL3IR}

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	2026-07-05T06:33:38.701856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4b4b90b9bef2105529c472cdd9d7b446d0b9428158e0e59070faa75eb7c230d

Aliases

arxiv: 2011.12662 · arxiv_version: 2011.12662v4 · doi: 10.48550/arxiv.2011.12662 · pith_short_12: WS2LSC4354QQ · pith_short_16: WS2LSC4354QQKUU4 · pith_short_8: WS2LSC43

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/WS2LSC4354QQKUU4I4WN3HL3IR \
  | 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: b4b4b90b9bef2105529c472cdd9d7b446d0b9428158e0e59070faa75eb7c230d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c84cb1c03d452bfc125f8f761012b3b2a2d2fa5b9cb42a6d6a8e6a934503d64a",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-11-25T11:44:12Z",
    "title_canon_sha256": "592fb5e125558afe3533051607d0c43c92656f648ee5fb4cf2c0ec3de99c00e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.12662",
    "kind": "arxiv",
    "version": 4
  }
}