Pith Number

pith:CGPIBKGR

pith:2019:CGPIBKGRCF2ECNGQ7ER7RKUL4N

not attested not anchored not stored refs pending

Scaling Up Collaborative Filtering Data Sets through Randomized Fractal Expansions

Amit Bleiwess, Dan Shirron, Francois Belletti, John Anderson, Karthik Lakshmanan, Nicolas Mayoraz, Taylor Robie, Tayo Oguntebi, Walid Krichene, Yi-Fan Chen

arxiv:1905.09874 v1 · 2019-04-08 · cs.LG · cs.IR · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CGPIBKGRCF2ECNGQ7ER7RKUL4N}

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	2026-05-17T23:45:14.220014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

119e80a8d111744134d0f923f8aa8be360298772cc892c29a1db0a97c23e5fed

Aliases

arxiv: 1905.09874 · arxiv_version: 1905.09874v1 · doi: 10.48550/arxiv.1905.09874 · pith_short_12: CGPIBKGRCF2E · pith_short_16: CGPIBKGRCF2ECNGQ · pith_short_8: CGPIBKGR

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/CGPIBKGRCF2ECNGQ7ER7RKUL4N \
  | 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: 119e80a8d111744134d0f923f8aa8be360298772cc892c29a1db0a97c23e5fed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e14b6c6bbfb725af86217203d3799e68fec57350197119f611bb5c64f2dd9ea9",
    "cross_cats_sorted": [
      "cs.IR",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-04-08T17:56:38Z",
    "title_canon_sha256": "90970a1060485345a6257a798d7b74e33023404d6a74cbc06cdec87874319d1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.09874",
    "kind": "arxiv",
    "version": 1
  }
}