Pith Number

pith:O2Y2RZ3Q

pith:2018:O2Y2RZ3QL22E64GNMFXT3L4LXP

not attested not anchored not stored refs pending

Connecting Spectral Clustering to Maximum Margins and Level Sets

David P. Hofmeyr

arxiv:1812.06397 v1 · 2018-12-16 · 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{O2Y2RZ3QL22E64GNMFXT3L4LXP}

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	2026-05-17T23:58:10.347611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76b1a8e7705eb44f70cd616f3daf8bbbff0136386c7bb5489fe1f113a208c866

Aliases

arxiv: 1812.06397 · arxiv_version: 1812.06397v1 · doi: 10.48550/arxiv.1812.06397 · pith_short_12: O2Y2RZ3QL22E · pith_short_16: O2Y2RZ3QL22E64GN · pith_short_8: O2Y2RZ3Q

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/O2Y2RZ3QL22E64GNMFXT3L4LXP \
  | 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: 76b1a8e7705eb44f70cd616f3daf8bbbff0136386c7bb5489fe1f113a208c866

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8f0b41f405a16add1497b0b5ca8116b6e92944f349f8911ce718e13945c8de6",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-12-16T05:48:23Z",
    "title_canon_sha256": "3fd1b680c8f1458a2519512b63ce6533eb0225a04384d96c8e87be07a35691bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.06397",
    "kind": "arxiv",
    "version": 1
  }
}