Pith Number

pith:SADTQPIU

pith:2019:SADTQPIU56BFBATGNG5AQJQPDW

not attested not anchored not stored refs pending

Contextualized Sparse Representations for Real-Time Open-Domain Question Answering

Hannaneh Hajishirzi, Jaewoo Kang, Jinhyuk Lee, Minjoon Seo

arxiv:1911.02896 v2 · 2019-11-07 · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SADTQPIU56BFBATGNG5AQJQPDW}

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

2 papers in Pith

Atlas: Few-shot Learning with Retrieval Augmented Language Models

Unsupervised Dense Information Retrieval with Contrastive Learning

Receipt and verification

First computed	2026-07-05T00:59:34.407083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9007383d14ef8250826669ba08260f1d85b5e494a9b850be56fff61fe7b633e9

Aliases

arxiv: 1911.02896 · arxiv_version: 1911.02896v2 · doi: 10.48550/arxiv.1911.02896 · pith_short_12: SADTQPIU56BF · pith_short_16: SADTQPIU56BFBATG · pith_short_8: SADTQPIU

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/SADTQPIU56BFBATGNG5AQJQPDW \
  | 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: 9007383d14ef8250826669ba08260f1d85b5e494a9b850be56fff61fe7b633e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47b92e9b4a132ab94f49697f81904abf4a717a0fa73a3993e0214d12af972c10",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-11-07T13:34:54Z",
    "title_canon_sha256": "58aaea58079f06888fafe82b9bd165ea69eec673c358ffd59910f3ace7859f65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.02896",
    "kind": "arxiv",
    "version": 2
  }
}