Pith Number

pith:DKN5JVY3

pith:2019:DKN5JVY35F6CKMY2GLYEYQSAZM

not attested not anchored not stored refs pending

A Multi-level procedure for enhancing accuracy of machine learning algorithms

Kjetil O. Lye, Roberto Molinaro, Siddhartha Mishra

arxiv:1909.09448 v2 · 2019-09-20 · math.NA · cs.LG · cs.NA · physics.comp-ph · 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{DKN5JVY35F6CKMY2GLYEYQSAZM}

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	2026-07-05T01:15:55.428799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a9bd4d71be97c25331a32f04c4240cb113eee854908dba07490de3f6a79ba8d

Aliases

arxiv: 1909.09448 · arxiv_version: 1909.09448v2 · doi: 10.48550/arxiv.1909.09448 · pith_short_12: DKN5JVY35F6C · pith_short_16: DKN5JVY35F6CKMY2 · pith_short_8: DKN5JVY3

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/DKN5JVY35F6CKMY2GLYEYQSAZM \
  | 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: 1a9bd4d71be97c25331a32f04c4240cb113eee854908dba07490de3f6a79ba8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "830ddda20023728cbe9fef20cf78fd3ec395b489c538adb648ba123ae757c42f",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA",
      "physics.comp-ph",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-09-20T12:21:14Z",
    "title_canon_sha256": "68da4d5ca2a1d6e08b353b40972fe28707ae51123b258ad4f8e5aaf898449ac7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.09448",
    "kind": "arxiv",
    "version": 2
  }
}