Pith Number

pith:4PW27FXW

pith:2022:4PW27FXWXLTZ5LJVBYTLKU4DAT

not attested not anchored not stored refs pending

Low-Resource Dense Retrieval for Open-Domain Question Answering: A Comprehensive Survey

Adri\`a de Gispert, Bill Byrne, Gianni Barlacchi, Marco Del Tredici, Svitlana Vakulenko, Xiaoyu Shen

arxiv:2208.03197 v1 · 2022-08-05 · 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{4PW27FXWXLTZ5LJVBYTLKU4DAT}

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	2026-07-05T04:46:21.338645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3edaf96f6bae79ead350e26b5538304cd25aa0d24aba18532634c58e0578e77

Aliases

arxiv: 2208.03197 · arxiv_version: 2208.03197v1 · doi: 10.48550/arxiv.2208.03197 · pith_short_12: 4PW27FXWXLTZ · pith_short_16: 4PW27FXWXLTZ5LJV · pith_short_8: 4PW27FXW

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/4PW27FXWXLTZ5LJVBYTLKU4DAT \
  | 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: e3edaf96f6bae79ead350e26b5538304cd25aa0d24aba18532634c58e0578e77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c88773513f40777644d47c4ec18fcf2829dc5d35219385358150adbca15ef8ff",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2022-08-05T14:35:03Z",
    "title_canon_sha256": "516990178e6197c99c0c9c281656a2c6a058d73ee25246d30250a8c451eb9de0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.03197",
    "kind": "arxiv",
    "version": 1
  }
}