Pith Number

pith:NJVM4EMZ

pith:2021:NJVM4EMZVBI7YDV6KWFEVQK5X6

not attested not anchored not stored refs pending

Less is More: Pre-train a Strong Text Encoder for Dense Retrieval Using a Weak Decoder

Arnold Overwijk, Chenyan Xiong, Di He, Guolin Ke, Paul Bennett, Shuqi Lu, Tieyan Liu, Waleed Malik, Zhicheng Dou

arxiv:2102.09206 v3 · 2021-02-18 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NJVM4EMZVBI7YDV6KWFEVQK5X6}

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	2026-07-05T03:14:53.858124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a6ace1199a851fc0ebe558a4ac15dbf939456a145e092a7c7edeac05937b3f9

Aliases

arxiv: 2102.09206 · arxiv_version: 2102.09206v3 · doi: 10.48550/arxiv.2102.09206 · pith_short_12: NJVM4EMZVBI7 · pith_short_16: NJVM4EMZVBI7YDV6 · pith_short_8: NJVM4EMZ

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/NJVM4EMZVBI7YDV6KWFEVQK5X6 \
  | 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: 6a6ace1199a851fc0ebe558a4ac15dbf939456a145e092a7c7edeac05937b3f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65cd1ff6c7c31a4cbdcd0a546b52ca8aed19e6ee44088ae40657471ce1a86656",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-02-18T08:08:17Z",
    "title_canon_sha256": "57d0e2fc16db409ce1b1f71613447b3f331e2ef40aa64aeb1a6ac8f1550a024e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.09206",
    "kind": "arxiv",
    "version": 3
  }
}