Pith Number

pith:67DQDHD3

pith:2022:67DQDHD3XIPDNZNLZACXJVMLCR

not attested not anchored not stored refs pending

Towards Reliable Item Sampling for Recommendation Evaluation

Bin Ren, Dong Li, Jing Gao, Ruoming Jin, Zhenming Liu, Zhi Liu

arxiv:2211.15743 v3 · 2022-11-28 · cs.IR · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{67DQDHD3XIPDNZNLZACXJVMLCR}

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	2026-07-05T06:59:28.688847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7c7019c7bba1e36e5abc80574d58b1443f0626660028f6c86afe44394123e50

Aliases

arxiv: 2211.15743 · arxiv_version: 2211.15743v3 · doi: 10.48550/arxiv.2211.15743 · pith_short_12: 67DQDHD3XIPD · pith_short_16: 67DQDHD3XIPDNZNL · pith_short_8: 67DQDHD3

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/67DQDHD3XIPDNZNLZACXJVMLCR \
  | 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: f7c7019c7bba1e36e5abc80574d58b1443f0626660028f6c86afe44394123e50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d62a8095be9f9a095f89f5730fadeb9590f348733b0c8885cc3d96aed2f33998",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2022-11-28T19:49:02Z",
    "title_canon_sha256": "d790b892c53a0a1af54b5661b96c706247a4cdb5b071336c28ec6007ed443b26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.15743",
    "kind": "arxiv",
    "version": 3
  }
}