Pith Number

pith:UNUIUBQF

pith:2021:UNUIUBQF74LRIAZFBQINBGVXXN

not attested not anchored not stored refs pending

Scalable Personalised Item Ranking through Parametric Density Estimation

Masahiro Kato, Mayu Otani, Riku Togashi, Shin'ichi Satoh, Tetsuya Sakai

arxiv:2105.04769 v1 · 2021-05-11 · cs.LG · 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{UNUIUBQF74LRIAZFBQINBGVXXN}

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	2026-07-05T02:39:24.015057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3688a0605ff171403250c10d09ab7bb6ab21460615204509e89b5584f93443c

Aliases

arxiv: 2105.04769 · arxiv_version: 2105.04769v1 · doi: 10.48550/arxiv.2105.04769 · pith_short_12: UNUIUBQF74LR · pith_short_16: UNUIUBQF74LRIAZF · pith_short_8: UNUIUBQF

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/UNUIUBQF74LRIAZFBQINBGVXXN \
  | 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: a3688a0605ff171403250c10d09ab7bb6ab21460615204509e89b5584f93443c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5295b9ecd95465b91d5d7c1ebb728471ff3270330ed0a46b39194548c50ac2d0",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-05-11T03:38:16Z",
    "title_canon_sha256": "cbeae33832b3ba054de4d55c41bab3c9553eba288b9ac27bfd91b4bcd4904b13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.04769",
    "kind": "arxiv",
    "version": 1
  }
}