Pith Number

pith:E62LPU5P

pith:2018:E62LPU5PFLEIGVAUH3TB53ANPL

not attested not anchored not stored refs pending

Improving Recommender Systems Beyond the Algorithm

Paul N. Bennett, Thorsten Joachims, Tobias Schnabel

arxiv:1802.07578 v1 · 2018-02-21 · cs.HC · 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{E62LPU5PFLEIGVAUH3TB53ANPL}

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	2026-05-18T00:22:49.896633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27b4b7d3af2ac88354143ee61eec0d7ac6fd5a73dd80afbacefbdef19583ef70

Aliases

arxiv: 1802.07578 · arxiv_version: 1802.07578v1 · doi: 10.48550/arxiv.1802.07578 · pith_short_12: E62LPU5PFLEI · pith_short_16: E62LPU5PFLEIGVAU · pith_short_8: E62LPU5P

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/E62LPU5PFLEIGVAUH3TB53ANPL \
  | 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: 27b4b7d3af2ac88354143ee61eec0d7ac6fd5a73dd80afbacefbdef19583ef70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f126f841247b6dedc46092e59fd97f9411986e98acecf4581eeaafde9fe89c63",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2018-02-21T14:13:49Z",
    "title_canon_sha256": "7381e7ac8f503a0d0f28076a3b5cdaa8a82c1dc25a1e5c6973998c7c761dd5a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07578",
    "kind": "arxiv",
    "version": 1
  }
}