Pith Number

pith:PKCJPCAY

pith:2019:PKCJPCAYITJXCOPWEIJPRJ37MS

not attested not anchored not stored refs pending

Unsupervised pre-training helps to conserve views from input distribution

Nicolas Pinchaud

arxiv:1905.12889 v1 · 2019-05-30 · cs.LG · 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{PKCJPCAYITJXCOPWEIJPRJ37MS}

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	2026-05-17T23:44:39.399121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a8497881844d37139f62212f8a77f6494c3c7d814c6d6ba88d8ded5e6e4571d

Aliases

arxiv: 1905.12889 · arxiv_version: 1905.12889v1 · doi: 10.48550/arxiv.1905.12889 · pith_short_12: PKCJPCAYITJX · pith_short_16: PKCJPCAYITJXCOPW · pith_short_8: PKCJPCAY

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/PKCJPCAYITJXCOPWEIJPRJ37MS \
  | 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: 7a8497881844d37139f62212f8a77f6494c3c7d814c6d6ba88d8ded5e6e4571d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5abc3401bb79f4527adadb6bc49568ec277d032782622db6024133edb0b7deac",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-05-30T07:26:52Z",
    "title_canon_sha256": "ab3be0d4156f38b63682091c814d7454c6b06ee11d10b0b1618936a1aa6783ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.12889",
    "kind": "arxiv",
    "version": 1
  }
}