Pith Number

pith:UHY5D34U

pith:2019:UHY5D34UWMX73ZDSFZGCKTLZYU

not attested not anchored not stored refs pending

User Profile Feature-Based Approach to Address the Cold Start Problem in Collaborative Filtering for Personalized Movie Recommendation

Lasitha Uyangoda, Supunmali Ahangama, Tharindu Ranasinghe

arxiv:1906.00365 v1 · 2019-06-02 · cs.IR · 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{UHY5D34UWMX73ZDSFZGCKTLZYU}

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	2026-05-17T23:44:27.298018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1f1d1ef94b32ffde4722e4c254d79c50d932e3509a8619a52d86018eaa511e2

Aliases

arxiv: 1906.00365 · arxiv_version: 1906.00365v1 · doi: 10.48550/arxiv.1906.00365 · pith_short_12: UHY5D34UWMX7 · pith_short_16: UHY5D34UWMX73ZDS · pith_short_8: UHY5D34U

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/UHY5D34UWMX73ZDSFZGCKTLZYU \
  | 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: a1f1d1ef94b32ffde4722e4c254d79c50d932e3509a8619a52d86018eaa511e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df77a65ae851197f1d00a37fb84b711ac76162d1b678404966d747cc762adb69",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-06-02T08:44:48Z",
    "title_canon_sha256": "da4584e1990a3aa53ab27bb79b1b42b94fc92631c09b554974f0afde455d858e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.00365",
    "kind": "arxiv",
    "version": 1
  }
}