Pith Number

pith:XMWX7NA2

pith:2021:XMWX7NA2RLKYTMGIEAPGT7RDPD

not attested not anchored not stored refs pending

Retrieving and Reading: A Comprehensive Survey on Open-domain Question Answering

Chao Wang, Fengbin Zhu, Jianming Zheng, Soujanya Poria, Tat-Seng Chua, Wenqiang Lei

arxiv:2101.00774 v3 · 2021-01-04 · 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{XMWX7NA2RLKYTMGIEAPGT7RDPD}

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.

Cited by

4 papers in Pith

It's High Time: A Survey of Temporal Question Answering

LaMDA: Language Models for Dialog Applications

RADS: Reinforcement Learning-Based Sample Selection Improves Transfer Learning in Low-resource and Imbalanced Clinical Settings

Context-Aware Search and Retrieval Under Token Erasure

Receipt and verification

First computed	2026-07-05T02:38:32.220656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb2d7fb41a8ad589b0c8201e69fe2378e2bb4ccd2151f940b782849399d77dd5

Aliases

arxiv: 2101.00774 · arxiv_version: 2101.00774v3 · doi: 10.48550/arxiv.2101.00774 · pith_short_12: XMWX7NA2RLKY · pith_short_16: XMWX7NA2RLKYTMGI · pith_short_8: XMWX7NA2

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/XMWX7NA2RLKYTMGIEAPGT7RDPD \
  | 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: bb2d7fb41a8ad589b0c8201e69fe2378e2bb4ccd2151f940b782849399d77dd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f964f615de31467dbd20c7956607a8765a3739b36b1dff9e9360281e80cd718",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2021-01-04T04:47:46Z",
    "title_canon_sha256": "7a2467e654a7153bf85efdd3838802eb92006bb06e4fed5e4359096b99ba72e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.00774",
    "kind": "arxiv",
    "version": 3
  }
}