Pith Number

pith:WUAHMIBF

pith:2016:WUAHMIBFLIZHGN7HGLDMSDEJHT

not attested not anchored not stored refs pending

Top-N Recommendation with Novel Rank Approximation

Qiang Cheng, Zhao Kang

arxiv:1602.07783 v2 · 2016-02-25 · cs.IR · cs.AI · 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{WUAHMIBFLIZHGN7HGLDMSDEJHT}

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	2026-05-18T01:19:56.862982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5007620255a327337e732c6c90c893ceb9605a9ff2228f552ec22beafdad89d

Aliases

arxiv: 1602.07783 · arxiv_version: 1602.07783v2 · doi: 10.48550/arxiv.1602.07783 · pith_short_12: WUAHMIBFLIZH · pith_short_16: WUAHMIBFLIZHGN7H · pith_short_8: WUAHMIBF

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/WUAHMIBFLIZHGN7HGLDMSDEJHT \
  | 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: b5007620255a327337e732c6c90c893ceb9605a9ff2228f552ec22beafdad89d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66a4e0d126cbc5b338106c92a4e257a9fc14c8c51a0aeaed9c1f5daae88b6938",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2016-02-25T03:33:44Z",
    "title_canon_sha256": "0f2d4365ea448fd32049a2a5e413b0e0f21a1da7f16d50fbd2068fa7cae397c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.07783",
    "kind": "arxiv",
    "version": 2
  }
}