Pith Number

pith:FCKYWM3T

pith:2019:FCKYWM3TGADSN7TELDO3MFO63J

not attested not anchored not stored refs pending

Clustering-Based Collaborative Filtering Using an Incentivized/Penalized User Model

Cong Tran, Jang-Young Kim, Sang-Wook Kim, Won-Yong Shin

arxiv:1905.01990 v1 · 2019-05-01 · cs.IR · cs.LG · cs.MA · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FCKYWM3TGADSN7TELDO3MFO63J}

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	2026-05-17T23:46:56.765010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28958b3373300726fe6458ddb615deda7001e47bbbe5783860387eb6b057fc8a

Aliases

arxiv: 1905.01990 · arxiv_version: 1905.01990v1 · doi: 10.48550/arxiv.1905.01990 · pith_short_12: FCKYWM3TGADS · pith_short_16: FCKYWM3TGADSN7TE · pith_short_8: FCKYWM3T

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/FCKYWM3TGADSN7TELDO3MFO63J \
  | 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: 28958b3373300726fe6458ddb615deda7001e47bbbe5783860387eb6b057fc8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c25e32e186b5b0afefe1911e6eb989fd43dff48563b40e6af76a0cc631597e1",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.MA",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-05-01T06:47:36Z",
    "title_canon_sha256": "7712ac819aa18100be5a450cfa51c10a28e4e8410f8148ca47f52fbe67eef9a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01990",
    "kind": "arxiv",
    "version": 1
  }
}