Pith Number

pith:Q73NPZG7

pith:2019:Q73NPZG7VM5CIMYMNMAVDU5MHQ

not attested not anchored not stored refs pending

Generating the support with extreme value losses

Nicholas Guttenberg

arxiv:1902.02940 v1 · 2019-02-08 · 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{Q73NPZG7VM5CIMYMNMAVDU5MHQ}

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	2026-05-17T23:54:28.771125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87f6d7e4dfab3a24330c6b0151d3ac3c26c0a6a2ab46eeafa6e2077767fc0f7d

Aliases

arxiv: 1902.02940 · arxiv_version: 1902.02940v1 · doi: 10.48550/arxiv.1902.02940 · pith_short_12: Q73NPZG7VM5C · pith_short_16: Q73NPZG7VM5CIMYM · pith_short_8: Q73NPZG7

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/Q73NPZG7VM5CIMYMNMAVDU5MHQ \
  | 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: 87f6d7e4dfab3a24330c6b0151d3ac3c26c0a6a2ab46eeafa6e2077767fc0f7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29b1682775c3bda4d514f60a6ef2125d9e67f6f468449f8418f1220b02f80e26",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-02-08T04:58:50Z",
    "title_canon_sha256": "f7045607aefe9da10d63b2f42ce6dd72c2216cc94579eb038c7d1727d910528a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02940",
    "kind": "arxiv",
    "version": 1
  }
}