Pith Number

pith:GVR5FRHB

pith:2020:GVR5FRHBCARIQK6MFV7W72WWKE

not attested not anchored not stored refs pending

Overcoming Data Sparsity in Group Recommendation

Hongzhi Yin, Kai Zheng, Qinyong Wang, Xiaofang Zhou, Zhixu Li

arxiv:2010.00813 v1 · 2020-10-02 · cs.IR · 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{GVR5FRHBCARIQK6MFV7W72WWKE}

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	2026-07-05T01:39:47.815011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3563d2c4e11022882bcc2d7f6fead6512b64279d38faa0561454c1be9218c501

Aliases

arxiv: 2010.00813 · arxiv_version: 2010.00813v1 · doi: 10.48550/arxiv.2010.00813 · pith_short_12: GVR5FRHBCARI · pith_short_16: GVR5FRHBCARIQK6M · pith_short_8: GVR5FRHB

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/GVR5FRHBCARIQK6MFV7W72WWKE \
  | 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: 3563d2c4e11022882bcc2d7f6fead6512b64279d38faa0561454c1be9218c501

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b9c102c625ab58ed9c17a907d2fab753c499080c6c2a600740faab8eeec17a0",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2020-10-02T07:11:19Z",
    "title_canon_sha256": "cab56e5b54ddbeebdd081896de778f0e6b57824b883d419285020818325fa0ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.00813",
    "kind": "arxiv",
    "version": 1
  }
}