Pith Number

pith:74SZLNUO

pith:2013:74SZLNUOLF6FUFXYZFYI26RSI2

not attested not anchored not stored refs pending

GAPfm: Optimal Top-N Recommendations for Graded Relevance Domains

Alan Hanjalic, Alexandros Karatzoglou, Linas Baltrunas, Martha Larson, Yue Shi

arxiv:1307.3855 v1 · 2013-07-15 · 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{74SZLNUOLF6FUFXYZFYI26RSI2}

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	2026-05-18T03:18:27.656455Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff2595b68e597c5a16f8c9708d7a32469d2218a5d89b12efa01d2957792ffed4

Aliases

arxiv: 1307.3855 · arxiv_version: 1307.3855v1 · doi: 10.48550/arxiv.1307.3855 · pith_short_12: 74SZLNUOLF6F · pith_short_16: 74SZLNUOLF6FUFXY · pith_short_8: 74SZLNUO

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/74SZLNUOLF6FUFXYZFYI26RSI2 \
  | 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: ff2595b68e597c5a16f8c9708d7a32469d2218a5d89b12efa01d2957792ffed4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb0d4e9beca117217e8841070df311c25334dd0d80086750d66840770a92e3e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2013-07-15T08:55:11Z",
    "title_canon_sha256": "55c0804ca6d1c3e815dc29daefe54cf537ba16396dd86eb85ad0c75179788964"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.3855",
    "kind": "arxiv",
    "version": 1
  }
}