Pith Number

pith:BRZO2KO6

pith:2019:BRZO2KO6MZHF2TBXFC6MVZJL6H

not attested not anchored not stored refs pending

Bi-cross validation for estimating spectral clustering hyper parameters

Chun-Hong Yoon, Sioan Zohar

arxiv:1908.03747 v3 · 2019-08-10 · stat.ML · cs.LG · physics.acc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BRZO2KO6MZHF2TBXFC6MVZJL6H}

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	2026-07-05T00:57:49.742417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c72ed29de664e5d4c3728bccae52bf1d2478bfaec4a12446c44372c883f58d5

Aliases

arxiv: 1908.03747 · arxiv_version: 1908.03747v3 · doi: 10.48550/arxiv.1908.03747 · pith_short_12: BRZO2KO6MZHF · pith_short_16: BRZO2KO6MZHF2TBX · pith_short_8: BRZO2KO6

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/BRZO2KO6MZHF2TBXFC6MVZJL6H \
  | 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: 0c72ed29de664e5d4c3728bccae52bf1d2478bfaec4a12446c44372c883f58d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd901d2d186271ef56607bb4f74ebfe3a5c15b2d4265f0f9158ecdc6ab69bdd0",
    "cross_cats_sorted": [
      "cs.LG",
      "physics.acc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-08-10T13:14:33Z",
    "title_canon_sha256": "1158619b55f77fce2b7272f46b07d26800d267920ac7f7f076b81e3a906536c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03747",
    "kind": "arxiv",
    "version": 3
  }
}