Pith Number

pith:AEOWTA2K

pith:2012:AEOWTA2K7DKTU5DGY4CM2X2ONQ

not attested not anchored not stored refs pending

Robust Metric Learning by Smooth Optimization

Cheng-Lin Liu, Kaizhu Huang, Rong Jin, Zenglin Xu

arxiv:1203.3461 v1 · 2012-03-15 · cs.LG · 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{AEOWTA2K7DKTU5DGY4CM2X2ONQ}

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	2026-05-18T04:00:00.578013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

011d69834af8d53a7466c704cd5f4e6c34a1c527e004d6fc4b1419ddeb0d4c2c

Aliases

arxiv: 1203.3461 · arxiv_version: 1203.3461v1 · doi: 10.48550/arxiv.1203.3461 · pith_short_12: AEOWTA2K7DKT · pith_short_16: AEOWTA2K7DKTU5DG · pith_short_8: AEOWTA2K

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/AEOWTA2K7DKTU5DGY4CM2X2ONQ \
  | 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: 011d69834af8d53a7466c704cd5f4e6c34a1c527e004d6fc4b1419ddeb0d4c2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5b59b067f85badf9d05d5644eacefcde37b1a73d77040f5d3551403a546b52a",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-03-15T11:17:56Z",
    "title_canon_sha256": "0079d128521dfcf84b3736f2b6874d31ce83f217eb0a96fde8fd3d20986167e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.3461",
    "kind": "arxiv",
    "version": 1
  }
}