Pith Number

pith:3KYWNLGZ

pith:2019:3KYWNLGZPPI2ZNBIQEVPIYFLDN

not attested not anchored not stored refs pending

Human-in-the-loop Active Covariance Learning for Improving Prediction in Small Data Sets

Homayun Afrabandpey, Samuel Kaski, Tomi Peltola

arxiv:1902.09834 v2 · 2019-02-26 · cs.LG · cs.HC · 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{3KYWNLGZPPI2ZNBIQEVPIYFLDN}

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	2026-05-17T23:51:04.948906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dab166acd97bd1acb428812af460ab1b4fa771c35833cecec8f9b2c6ee1bf16d

Aliases

arxiv: 1902.09834 · arxiv_version: 1902.09834v2 · doi: 10.48550/arxiv.1902.09834 · pith_short_12: 3KYWNLGZPPI2 · pith_short_16: 3KYWNLGZPPI2ZNBI · pith_short_8: 3KYWNLGZ

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/3KYWNLGZPPI2ZNBIQEVPIYFLDN \
  | 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: dab166acd97bd1acb428812af460ab1b4fa771c35833cecec8f9b2c6ee1bf16d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1797dbfa79b5b28ef0b53d4f13b6df04371d11266dab2fc7a7a19f97dbe4afc7",
    "cross_cats_sorted": [
      "cs.HC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-02-26T10:03:18Z",
    "title_canon_sha256": "afaee562505f30e46ed5e96f672d93699a104d916d0203cac1c6135af0ea57bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09834",
    "kind": "arxiv",
    "version": 2
  }
}