Pith Number

pith:IEC3VLTO

pith:2014:IEC3VLTO54HYAVHLR3QIQMLBMQ

not attested not anchored not stored refs pending

Uncovering the information core in recommender systems

An Zeng, Hao Liu, Ming-Sheng Shang, Tao Zhou, Wei Zeng

arxiv:1402.6132 v1 · 2014-02-25 · 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{IEC3VLTO54HYAVHLR3QIQMLBMQ}

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	2026-05-18T02:57:51.545948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4105baae6eef0f8054eb8ee0883161641601115202109f33c7d8b53d03560c05

Aliases

arxiv: 1402.6132 · arxiv_version: 1402.6132v1 · doi: 10.48550/arxiv.1402.6132 · pith_short_12: IEC3VLTO54HY · pith_short_16: IEC3VLTO54HYAVHL · pith_short_8: IEC3VLTO

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/IEC3VLTO54HYAVHLR3QIQMLBMQ \
  | 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: 4105baae6eef0f8054eb8ee0883161641601115202109f33c7d8b53d03560c05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cba701ed8152cf433a27b49e4c6697534986df3c09eb8f6dd3b179751183198e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2014-02-25T11:08:02Z",
    "title_canon_sha256": "19bd5d0dfd407e121f041743bc99c0a1ba0431d75de376074a56fdaf242f6016"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.6132",
    "kind": "arxiv",
    "version": 1
  }
}