Pith Number

pith:R2IDNGAP

pith:2015:R2IDNGAPRXVP73HMRV5G2DTAW6

not attested not anchored not stored refs pending

MLlib: Machine Learning in Apache Spark

Ameet Talwalkar, Burak Yavuz, Davies Liu, DB Tsai, Doris Xin, Evan Sparks, Jeremy Freeman, Joseph Bradley, Manish Amde, Matei Zaharia, Michael J. Franklin, Reynold Xin, Reza Zadeh, Sean Owen, Shivaram Venkataraman, Xiangrui Meng

arxiv:1505.06807 v1 · 2015-05-26 · cs.LG · cs.DC · cs.MS · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R2IDNGAPRXVP73HMRV5G2DTAW6}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:03:29.929459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e9036980f8deaffecec8d7a6d0e60b7b6b02deea092edbc6e45f388c95adb65

Aliases

arxiv: 1505.06807 · arxiv_version: 1505.06807v1 · doi: 10.48550/arxiv.1505.06807 · pith_short_12: R2IDNGAPRXVP · pith_short_16: R2IDNGAPRXVP73HM · pith_short_8: R2IDNGAP

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/R2IDNGAPRXVP73HMRV5G2DTAW6 \
  | 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: 8e9036980f8deaffecec8d7a6d0e60b7b6b02deea092edbc6e45f388c95adb65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8b1cbecfbc438fcaa3da5afbbc4a820651df31851682f1c8e8a00bb75b077d7",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.MS",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-05-26T05:12:23Z",
    "title_canon_sha256": "35d4fd1ac1a6b2bc862196b53fff858d9e2e72039dba7ad5634a02208c11b960"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06807",
    "kind": "arxiv",
    "version": 1
  }
}