Pith Number

pith:WXJ256YB

pith:2015:WXJ256YB4M4MP2NXF5AVMLUX7J

not attested not anchored not stored refs pending

Sample complexity of learning Mahalanobis distance metrics

Kristin Branson, Nakul Verma

arxiv:1505.02729 v1 · 2015-05-11 · cs.LG · cs.AI · 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{WXJ256YB4M4MP2NXF5AVMLUX7J}

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	2026-05-18T02:16:11.752794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5d3aefb01e338c7e9b72f41562e97fa5f82e36b9016c38401b8ce955cb736e3

Aliases

arxiv: 1505.02729 · arxiv_version: 1505.02729v1 · doi: 10.48550/arxiv.1505.02729 · pith_short_12: WXJ256YB4M4M · pith_short_16: WXJ256YB4M4MP2NX · pith_short_8: WXJ256YB

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/WXJ256YB4M4MP2NXF5AVMLUX7J \
  | 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: b5d3aefb01e338c7e9b72f41562e97fa5f82e36b9016c38401b8ce955cb736e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23030e1cbabdb516df2ca71c23019c5942c3ba146d691f3332f121727a0c62f0",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-05-11T18:55:42Z",
    "title_canon_sha256": "cc9dfdf2fff7a786560d90b74d386eb9639b4814522cead46889192ba811f5fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02729",
    "kind": "arxiv",
    "version": 1
  }
}