Pith Number

pith:AXABZHI5

pith:2019:AXABZHI54UD7WAF7VHZLEH5HWT

not attested not anchored not stored refs pending

TULIP: A Toolbox for Linear Discriminant Analysis with Penalties

Qing Mai, Xin Zhang, Yuqing Pan

arxiv:1904.03469 v1 · 2019-04-06 · stat.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AXABZHI54UD7WAF7VHZLEH5HWT}

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	2026-05-17T23:49:13.312270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05c01c9d1de507fb00bfa9f2b21fa7b4f1fd0617af8fe6a16268ffb38b2714cf

Aliases

arxiv: 1904.03469 · arxiv_version: 1904.03469v1 · doi: 10.48550/arxiv.1904.03469 · pith_short_12: AXABZHI54UD7 · pith_short_16: AXABZHI54UD7WAF7 · pith_short_8: AXABZHI5

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/AXABZHI54UD7WAF7VHZLEH5HWT \
  | 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: 05c01c9d1de507fb00bfa9f2b21fa7b4f1fd0617af8fe6a16268ffb38b2714cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2621cbc3e6dce853b1216f63bf98088bae8e2688f68fd53e801f037e1150bd2b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2019-04-06T15:26:15Z",
    "title_canon_sha256": "b3933db7a7b803d3443ba1cd657719fd3f530ec181bd7a4748776a6cfeb9531b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03469",
    "kind": "arxiv",
    "version": 1
  }
}