Pith Number

pith:QZHHWOVP

pith:2015:QZHHWOVPGOZJUNQUIIMEGJHFK4

not attested not anchored not stored refs pending

Modeling User Exposure in Recommendation

David M. Blei, Dawen Liang, James McInerney, Laurent Charlin

arxiv:1510.07025 v2 · 2015-10-23 · stat.ML · cs.IR · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QZHHWOVPGOZJUNQUIIMEGJHFK4}

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	2026-05-18T01:21:19.287242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

864e7b3aaf33b29a361442184324e5572002d3cf47da49117f6d6701cc63681b

Aliases

arxiv: 1510.07025 · arxiv_version: 1510.07025v2 · doi: 10.48550/arxiv.1510.07025 · pith_short_12: QZHHWOVPGOZJ · pith_short_16: QZHHWOVPGOZJUNQU · pith_short_8: QZHHWOVP

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/QZHHWOVPGOZJUNQUIIMEGJHFK4 \
  | 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: 864e7b3aaf33b29a361442184324e5572002d3cf47da49117f6d6701cc63681b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2bb2f20cd6cf160e108e0285827c4c7a7c3e651e1504a24715bb0b91113f7f7",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-10-23T19:39:38Z",
    "title_canon_sha256": "43f0a10a5d55dbb9a7c500a9f95fb34a047678f119edd09ec1a3efebd58e0209"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.07025",
    "kind": "arxiv",
    "version": 2
  }
}