Pith Number

pith:4GBTMZPA

pith:2014:4GBTMZPAJQEUWOBX4IEAQ5ZLRO

not attested not anchored not stored refs pending

Cold-start Problems in Recommendation Systems via Contextual-bandit Algorithms

Hai Thanh Nguyen, J\'er\'emie Mary, Philippe Preux

arxiv:1405.7544 v1 · 2014-05-29 · 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{4GBTMZPAJQEUWOBX4IEAQ5ZLRO}

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	2026-05-18T02:50:51.007678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1833665e04c094b3837e20808772b8ba89d6fea7f35fb29af35c24da1ee7ab8

Aliases

arxiv: 1405.7544 · arxiv_version: 1405.7544v1 · doi: 10.48550/arxiv.1405.7544 · pith_short_12: 4GBTMZPAJQEU · pith_short_16: 4GBTMZPAJQEUWOBX · pith_short_8: 4GBTMZPA

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/4GBTMZPAJQEUWOBX4IEAQ5ZLRO \
  | 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: e1833665e04c094b3837e20808772b8ba89d6fea7f35fb29af35c24da1ee7ab8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69216a8940e5eb704cd4fb0a7f2f35e5020ef1d616bddedb1c3e24242256b3e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2014-05-29T13:05:39Z",
    "title_canon_sha256": "e0f3f71a5c4296402db5a2553039d820c43d585420de4ccb7e22d54b65eb2487"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.7544",
    "kind": "arxiv",
    "version": 1
  }
}