Pith Number

pith:4S5U2VNS

pith:2013:4S5U2VNSSM6MK6SQD3BYUNBW5B

not attested not anchored not stored refs pending

Spectral Clustering via the Power Method -- Provably

Alex Gittens, Christos Boutsidis, Prabhanjan Kambadur

arxiv:1311.2854 v3 · 2013-11-12 · cs.LG · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4S5U2VNSSM6MK6SQD3BYUNBW5B}

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	2026-05-18T02:14:18.218109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4bb4d55b2933cc57a501ec38a3436e87388afa71e75a9df4171198895998874

Aliases

arxiv: 1311.2854 · arxiv_version: 1311.2854v3 · doi: 10.48550/arxiv.1311.2854 · pith_short_12: 4S5U2VNSSM6M · pith_short_16: 4S5U2VNSSM6MK6SQ · pith_short_8: 4S5U2VNS

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/4S5U2VNSSM6MK6SQD3BYUNBW5B \
  | 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: e4bb4d55b2933cc57a501ec38a3436e87388afa71e75a9df4171198895998874

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08d3c3d97a70e1196f8024628d2598684294ce780838151e6145a5c059981859",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-11-12T17:42:34Z",
    "title_canon_sha256": "8d40c0c355571cd376de42518e6b89a75da35128891a32942ca382623d3931d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2854",
    "kind": "arxiv",
    "version": 3
  }
}