Pith Number

pith:J2FABZAR

pith:2021:J2FABZARVRKSEVKZGGTFXPLHE3

not attested not anchored not stored refs pending

Pseudo Relevance Feedback with Deep Language Models and Dense Retrievers: Successes and Pitfalls

Ahmed Mourad, Bevan Koopman, Guido Zuccon, Hang Li, Shengyao Zhuang

arxiv:2108.11044 v2 · 2021-08-25 · 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{J2FABZARVRKSEVKZGGTFXPLHE3}

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	2026-07-05T04:36:33.080145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e8a00e411ac5522555931a65bbd6726ddc235889a0c3b3edfe9a3e64283422c

Aliases

arxiv: 2108.11044 · arxiv_version: 2108.11044v2 · doi: 10.48550/arxiv.2108.11044 · pith_short_12: J2FABZARVRKS · pith_short_16: J2FABZARVRKSEVKZ · pith_short_8: J2FABZAR

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/J2FABZARVRKSEVKZGGTFXPLHE3 \
  | 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: 4e8a00e411ac5522555931a65bbd6726ddc235889a0c3b3edfe9a3e64283422c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73067123b75255f67816978847df949815cbb5925fef09e9980a0469247f6180",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-08-25T04:43:58Z",
    "title_canon_sha256": "aec5b5fb6419e9cfeee0706954f620769ac77a537f415a0a8dbc4f8931a1335d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.11044",
    "kind": "arxiv",
    "version": 2
  }
}