Pith Number

pith:7HZRPKB4

pith:2020:7HZRPKB4MBCD4C6TLHORYT7ZCI

not attested not anchored not stored refs pending

DUMA: Reading Comprehension with Transposition Thinking

Hai Zhao, Pengfei Zhu, Xiaoguang Li

arxiv:2001.09415 v5 · 2020-01-26 · 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{7HZRPKB4MBCD4C6TLHORYT7ZCI}

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	2026-07-05T03:48:16.704717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9f317a83c60443e0bd359dd1c4ff9122bc456f391caccf6173cb9025bbf98cf

Aliases

arxiv: 2001.09415 · arxiv_version: 2001.09415v5 · doi: 10.48550/arxiv.2001.09415 · pith_short_12: 7HZRPKB4MBCD · pith_short_16: 7HZRPKB4MBCD4C6T · pith_short_8: 7HZRPKB4

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/7HZRPKB4MBCD4C6TLHORYT7ZCI \
  | 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: f9f317a83c60443e0bd359dd1c4ff9122bc456f391caccf6173cb9025bbf98cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2d1bdc57e2068400e6b527b4e41898b964f6af3508015b455c1f7ee7142fa14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-01-26T07:35:02Z",
    "title_canon_sha256": "da2e71c41708ff2057aedcff35bd05a34636df4316069fe3b70f7b404f9a8d79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.09415",
    "kind": "arxiv",
    "version": 5
  }
}