Pith Number

pith:R53NTVDY

pith:2020:R53NTVDY4QBMFFUIRPHSJNLTCF

not attested not anchored not stored refs pending

Local Clustering with Mean Teacher for Semi-supervised Learning

Benjamin Dutton, Bharathkumar Ramachandra, Ranga Raju Vatsavai, Tianfu Wu, Zexi Chen

arxiv:2004.09665 v2 · 2020-04-20 · cs.LG · cs.CV · 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{R53NTVDY4QBMFFUIRPHSJNLTCF}

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	2026-07-05T01:21:48.133102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f76d9d478e402c296888bcf24b5731143b04e3925983110050aee0f31b8281a

Aliases

arxiv: 2004.09665 · arxiv_version: 2004.09665v2 · doi: 10.48550/arxiv.2004.09665 · pith_short_12: R53NTVDY4QBM · pith_short_16: R53NTVDY4QBMFFUI · pith_short_8: R53NTVDY

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/R53NTVDY4QBMFFUIRPHSJNLTCF \
  | 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: 8f76d9d478e402c296888bcf24b5731143b04e3925983110050aee0f31b8281a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f303508016aefa6ce5f9e79f11d711d2d28007409ad3a30c4ed79c341029b5a",
    "cross_cats_sorted": [
      "cs.CV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-04-20T22:31:31Z",
    "title_canon_sha256": "307f37c7e162bb4a1284c44e7d5e5deff4839ff19f03bd7770c38a8e00248b17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.09665",
    "kind": "arxiv",
    "version": 2
  }
}