Pith Number

pith:JU5K6YOT

pith:2018:JU5K6YOTHH2HX2JNKQU4FFZTYT

not attested not anchored not stored refs pending

Machine Learning Approaches to Hybrid Music Recommender Systems

Andreu Vall, Gerhard Widmer

arxiv:1807.05858 v1 · 2018-07-16 · 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{JU5K6YOTHH2HX2JNKQU4FFZTYT}

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	2026-05-18T00:10:42.367280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d3aaf61d339f47be92d5429c29733c4cee8a6cb0535bd1965752a41dbcc3910

Aliases

arxiv: 1807.05858 · arxiv_version: 1807.05858v1 · doi: 10.48550/arxiv.1807.05858 · pith_short_12: JU5K6YOTHH2H · pith_short_16: JU5K6YOTHH2HX2JN · pith_short_8: JU5K6YOT

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/JU5K6YOTHH2HX2JNKQU4FFZTYT \
  | 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: 4d3aaf61d339f47be92d5429c29733c4cee8a6cb0535bd1965752a41dbcc3910

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d840b622798fb43c20fa4e0678fe654ed075b63da0807e56e39fb5c03aea0fc0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-07-16T13:44:35Z",
    "title_canon_sha256": "fcf048b257550ceb075537636cb9316ea8b72fb3744477e1583cc713d24c3d6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05858",
    "kind": "arxiv",
    "version": 1
  }
}