Pith Number

pith:FXGDEFHV

pith:2025:FXGDEFHV3WVI4ZEXSOHRH4YAKL

not attested not anchored not stored refs pending

Shapley Value-driven Data Pruning for Recommender Systems

Chen Ma, Xiaokun Zhang, Yansen Zhang, Ziqiang Cui

arxiv:2505.22057 v1 · 2025-05-28 · 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{FXGDEFHV3WVI4ZEXSOHRH4YAKL}

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	2026-07-05T11:11:08.953029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2dcc3214f5ddaa8e6497938f13f30052f05442d23d780115b3c060becd89af83

Aliases

arxiv: 2505.22057 · arxiv_version: 2505.22057v1 · doi: 10.48550/arxiv.2505.22057 · pith_short_12: FXGDEFHV3WVI · pith_short_16: FXGDEFHV3WVI4ZEX · pith_short_8: FXGDEFHV

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/FXGDEFHV3WVI4ZEXSOHRH4YAKL \
  | 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: 2dcc3214f5ddaa8e6497938f13f30052f05442d23d780115b3c060becd89af83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26e90ba439419291f0956193df3763e309b8138c8306df0866ec672e50632f4e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2025-05-28T07:27:59Z",
    "title_canon_sha256": "2caaabdb788dc337bf014d788dfc48ee582dcac682a97711bfdf4bc5423a7d57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.22057",
    "kind": "arxiv",
    "version": 1
  }
}