Pith Number

pith:43T3NRXD

pith:2013:43T3NRXDNHXG3OF6KUCWBG4XSE

not attested not anchored not stored refs pending

Efficient Distance Metric Learning by Adaptive Sampling and Mini-Batch Stochastic Gradient Descent (SGD)

Jinfeng Yi, Lijun Zhang, Qi Qian, Rong Jin, Shenghuo Zhu

arxiv:1304.1192 v1 · 2013-04-03 · 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{43T3NRXDNHXG3OF6KUCWBG4XSE}

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	2026-05-18T03:29:04.276238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6e7b6c6e369ee6db8be5505609b9791115c8825d52e364ecaf5b53ebbdd99ac

Aliases

arxiv: 1304.1192 · arxiv_version: 1304.1192v1 · doi: 10.48550/arxiv.1304.1192 · pith_short_12: 43T3NRXDNHXG · pith_short_16: 43T3NRXDNHXG3OF6 · pith_short_8: 43T3NRXD

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/43T3NRXDNHXG3OF6KUCWBG4XSE \
  | 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: e6e7b6c6e369ee6db8be5505609b9791115c8825d52e364ecaf5b53ebbdd99ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b743839eb0473c8263f722aa7f49474a8e0ffb212032ae2c3d8834bf3de04b55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-04-03T21:14:50Z",
    "title_canon_sha256": "edf971b94bda5c1a55bad975340a7e8241af7f09ddd6240f36b0c1236fd42646"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1192",
    "kind": "arxiv",
    "version": 1
  }
}