Pith Number

pith:T2OH6PM2

pith:2022:T2OH6PM2QDBCNJKB23P5JMCAMK

not attested not anchored not stored refs pending

From Distillation to Hard Negative Sampling: Making Sparse Neural IR Models More Effective

Benjamin Piwowarski, Carlos Lassance, St\'ephane Clinchant, Thibault Formal

arxiv:2205.04733 v2 · 2022-05-10 · cs.IR · 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{T2OH6PM2QDBCNJKB23P5JMCAMK}

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	2026-07-05T04:22:41.537325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e9c7f3d9a80c226a541d6dfd4b04062aabcfa51c3f4a8d6fca8fb0000813439

Aliases

arxiv: 2205.04733 · arxiv_version: 2205.04733v2 · doi: 10.48550/arxiv.2205.04733 · pith_short_12: T2OH6PM2QDBC · pith_short_16: T2OH6PM2QDBCNJKB · pith_short_8: T2OH6PM2

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/T2OH6PM2QDBCNJKB23P5JMCAMK \
  | 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: 9e9c7f3d9a80c226a541d6dfd4b04062aabcfa51c3f4a8d6fca8fb0000813439

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ed37fa0930661ba711b9c59fe80bfbc95cd35f5a1b486d236210fba44251e60",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2022-05-10T08:08:43Z",
    "title_canon_sha256": "1b03af9de1859562333a6676b04c69a54ed63818c2ee8832744a13494b7d7fce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.04733",
    "kind": "arxiv",
    "version": 2
  }
}