Pith Number

pith:6WLL3ZYN

pith:2013:6WLL3ZYNLJ5O3TGTAWK3QD3KTH

not attested not anchored not stored refs pending

Multiple Closed-Form Local Metric Learning for K-Nearest Neighbor Classifier

Jianbo Ye

arxiv:1311.3157 v1 · 2013-11-12 · 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{6WLL3ZYNLJ5O3TGTAWK3QD3KTH}

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	2026-05-18T03:07:12.886803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f596bde70d5a7aedccd30595b80f6a99e583f728acff5706b3a32527aa4e5444

Aliases

arxiv: 1311.3157 · arxiv_version: 1311.3157v1 · doi: 10.48550/arxiv.1311.3157 · pith_short_12: 6WLL3ZYNLJ5O · pith_short_16: 6WLL3ZYNLJ5O3TGT · pith_short_8: 6WLL3ZYN

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/6WLL3ZYNLJ5O3TGTAWK3QD3KTH \
  | 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: f596bde70d5a7aedccd30595b80f6a99e583f728acff5706b3a32527aa4e5444

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a9fd6fafa9dcefd6a9d9e9fc6cba30c574df4d9b0df214ee1d83c22d466d5f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-11-12T17:25:29Z",
    "title_canon_sha256": "3acc74f2e8590696909bf1abecf2c18e248ffbb91b7424f2244d3bf2a8af7d52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.3157",
    "kind": "arxiv",
    "version": 1
  }
}