Pith Number

pith:O67MYHZD

pith:2019:O67MYHZDVG54I2AWEOCIRHXXKI

not attested not anchored not stored refs pending

Robust Linear Discriminant Analysis Using Ratio Minimization of L1,2-Norms

Feiping Nie, Heng Huang, Hua Wang, Zheng Wang

arxiv:1907.00211 v1 · 2019-06-29 · cs.LG · cs.CV · 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{O67MYHZDVG54I2AWEOCIRHXXKI}

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	2026-05-17T23:41:52.498018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77becc1f23a9bbc468162384889ef7522d5e8c376bc8427ad4e6e8cd37d9ad6f

Aliases

arxiv: 1907.00211 · arxiv_version: 1907.00211v1 · doi: 10.48550/arxiv.1907.00211 · pith_short_12: O67MYHZDVG54 · pith_short_16: O67MYHZDVG54I2AW · pith_short_8: O67MYHZD

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/O67MYHZDVG54I2AWEOCIRHXXKI \
  | 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: 77becc1f23a9bbc468162384889ef7522d5e8c376bc8427ad4e6e8cd37d9ad6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bddad638223666fe02a0bab700f02037ceb2db6b0c56f763634ef616d07db415",
    "cross_cats_sorted": [
      "cs.CV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-06-29T14:39:27Z",
    "title_canon_sha256": "f4c56f56dacea2c13e1f6fda9ca32ff2c8fb256651f79cfc75e1f68a48f11353"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00211",
    "kind": "arxiv",
    "version": 1
  }
}