Pith Number

pith:NYQYMCJR

pith:2018:NYQYMCJRS32REMYV7XYEZUGVOC

not attested not anchored not stored refs pending

Addressing the Item Cold-start Problem by Attribute-driven Active Learning

Beidou Wang, Deng Cai, Haifeng Liu, Jinhao Lin, Shibi He, Yu Zhu, Ziyu Guan

arxiv:1805.09023 v1 · 2018-05-23 · cs.IR · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NYQYMCJRS32REMYV7XYEZUGVOC}

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	2026-05-18T00:15:08.742047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e2186093196f5123315fdf04cd0d570baf357178b69bc812a98755552e31160

Aliases

arxiv: 1805.09023 · arxiv_version: 1805.09023v1 · doi: 10.48550/arxiv.1805.09023 · pith_short_12: NYQYMCJRS32R · pith_short_16: NYQYMCJRS32REMYV · pith_short_8: NYQYMCJR

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/NYQYMCJRS32REMYV7XYEZUGVOC \
  | 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: 6e2186093196f5123315fdf04cd0d570baf357178b69bc812a98755552e31160

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ea7e1b65e66cc0aee514deb5b409ab9b8cca2789709b62b32560f1e8e8cd6e3",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-05-23T09:21:53Z",
    "title_canon_sha256": "587690097aade3695548192a5df7dd3d0c900c1457e1fcf0432434de32ed4c16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09023",
    "kind": "arxiv",
    "version": 1
  }
}