Pith Number

pith:6QAZ2UZE

pith:2021:6QAZ2UZEND3DE2FREWEFFHS25H

not attested not anchored not stored refs pending

Dual Reader-Parser on Hybrid Textual and Tabular Evidence for Open Domain Question Answering

Alexander Hanbo Li, Bing Xiang, Henghui Zhu, Patrick Ng, Peng Xu, Zhiguo Wang

arxiv:2108.02866 v2 · 2021-08-05 · 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{6QAZ2UZEND3DE2FREWEFFHS25H}

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	2026-07-05T03:39:01.798337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4019d532468f63268b12588529e5ae9d79fc8a1e35ca28334c375bd53fb718b

Aliases

arxiv: 2108.02866 · arxiv_version: 2108.02866v2 · doi: 10.48550/arxiv.2108.02866 · pith_short_12: 6QAZ2UZEND3D · pith_short_16: 6QAZ2UZEND3DE2FR · pith_short_8: 6QAZ2UZE

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/6QAZ2UZEND3DE2FREWEFFHS25H \
  | 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: f4019d532468f63268b12588529e5ae9d79fc8a1e35ca28334c375bd53fb718b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b43e0e0f117248707512363c364f9ed9f00bda0f2d6f973cc1b520907a0988b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-08-05T22:04:13Z",
    "title_canon_sha256": "6cd798932a037acb4610a2c9c607c5419ddb493d04068578eecbc98e7fa43a0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.02866",
    "kind": "arxiv",
    "version": 2
  }
}