Pith Number

pith:IPC2KBQZ

pith:2015:IPC2KBQZ57F2I3IVFHV3E2KZWK

not attested not anchored not stored refs pending

Group-Invariant Subspace Clustering

Eric Kernfeld, Shuchin Aeron

arxiv:1510.04356 v1 · 2015-10-15 · cs.IT · cs.LG · math.IT · 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{IPC2KBQZ57F2I3IVFHV3E2KZWK}

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	2026-05-18T01:30:07.409196Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43c5a50619efcba46d1529ebb26959b2b212d2f1f92df27373b3a37bf90d3737

Aliases

arxiv: 1510.04356 · arxiv_version: 1510.04356v1 · doi: 10.48550/arxiv.1510.04356 · pith_short_12: IPC2KBQZ57F2 · pith_short_16: IPC2KBQZ57F2I3IV · pith_short_8: IPC2KBQZ

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/IPC2KBQZ57F2I3IVFHV3E2KZWK \
  | 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: 43c5a50619efcba46d1529ebb26959b2b212d2f1f92df27373b3a37bf90d3737

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "073cef806360e20edc533d03851e0f3a41a5ab55924ea480acc16066c83e760b",
    "cross_cats_sorted": [
      "cs.LG",
      "math.IT",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-10-15T00:05:21Z",
    "title_canon_sha256": "748e1a3f8cbba56eefb8a533eac792ebb1feeca9a07ef7b7f1e63a3b0f9fd16a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.04356",
    "kind": "arxiv",
    "version": 1
  }
}