Pith Number

pith:XIN55YET

pith:2015:XIN55YETG3DDFRHZ7Y4OSHLHNI

not attested not anchored not stored refs pending

Robust Semi-supervised Least Squares Classification by Implicit Constraints

Jesse H. Krijthe, Marco Loog

arxiv:1512.08240 v2 · 2015-12-27 · stat.ML · 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{XIN55YETG3DDFRHZ7Y4OSHLHNI}

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	2026-05-18T00:51:58.159190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba1bdee09336c632c4f9fe38e91d676a160f3e059dd032585f94d12e54f0c963

Aliases

arxiv: 1512.08240 · arxiv_version: 1512.08240v2 · doi: 10.48550/arxiv.1512.08240 · pith_short_12: XIN55YETG3DD · pith_short_16: XIN55YETG3DDFRHZ · pith_short_8: XIN55YET

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/XIN55YETG3DDFRHZ7Y4OSHLHNI \
  | 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: ba1bdee09336c632c4f9fe38e91d676a160f3e059dd032585f94d12e54f0c963

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "011b8ad99a8d074f72b1c958553e150a664c0d637fd5d84af85fcc06243e5773",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-12-27T16:44:06Z",
    "title_canon_sha256": "a34551ba841593dba73884a6fbb3660a8c16389d6deb5cc6377afad137cca5d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.08240",
    "kind": "arxiv",
    "version": 2
  }
}