Pith Number

pith:NB4QGYP3

pith:2017:NB4QGYP3OFK7I2ZOO3NR4QUEXZ

not attested not anchored not stored refs pending

Semi-supervised learning

Alejandro Cholaquidis, Mariela Sued, Ricardo Fraiman

arxiv:1709.05673 v2 · 2017-09-17 · math.ST · stat.ML · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NB4QGYP3OFK7I2ZOO3NR4QUEXZ}

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	2026-05-18T00:27:57.018785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68790361fb7155f46b2e76db1e4284be78eb012260e14f1a719355e362bdec45

Aliases

arxiv: 1709.05673 · arxiv_version: 1709.05673v2 · doi: 10.48550/arxiv.1709.05673 · pith_short_12: NB4QGYP3OFK7 · pith_short_16: NB4QGYP3OFK7I2ZO · pith_short_8: NB4QGYP3

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/NB4QGYP3OFK7I2ZOO3NR4QUEXZ \
  | 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: 68790361fb7155f46b2e76db1e4284be78eb012260e14f1a719355e362bdec45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31472a8fb026df62fbad6211f81737cfda8b384f1c853315b1d6698bc077066b",
    "cross_cats_sorted": [
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2017-09-17T14:45:42Z",
    "title_canon_sha256": "c507ec1f749f82847efd25929965f51a20fbc420b6c9bb311778f9d67bdf1142"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05673",
    "kind": "arxiv",
    "version": 2
  }
}