Pith Number

pith:5JISDMYB

pith:2015:5JISDMYBTO7TSR3V5U2ZXSX3EN

not attested not anchored not stored refs pending

Distance-Penalized Active Learning Using Quantile Search

Brandon Wong, Branko Kerkez, Donald Scavia, John Lipor, Laura Balzano

arxiv:1509.08387 v2 · 2015-09-28 · stat.ML · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5JISDMYBTO7TSR3V5U2ZXSX3EN}

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	2026-05-18T00:50:35.895374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea5121b3019bbf394775ed359bcafb23629d16d84502fccd41e6beb5eea33145

Aliases

arxiv: 1509.08387 · arxiv_version: 1509.08387v2 · doi: 10.48550/arxiv.1509.08387 · pith_short_12: 5JISDMYBTO7T · pith_short_16: 5JISDMYBTO7TSR3V · pith_short_8: 5JISDMYB

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/5JISDMYBTO7TSR3V5U2ZXSX3EN \
  | 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: ea5121b3019bbf394775ed359bcafb23629d16d84502fccd41e6beb5eea33145

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7402ce56532f622472a81150c700cff7e9c1446fab4935cff155e371c6a406c",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-09-28T16:48:39Z",
    "title_canon_sha256": "8c6891cdc5242939ca7f7f6deb34455feb6328d1171174acf9e796f59a464f5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.08387",
    "kind": "arxiv",
    "version": 2
  }
}