Pith Number

pith:K5Z6XS4G

pith:2015:K5Z6XS4GARCUJQMSBFDDMQZL2Q

not attested not anchored not stored refs pending

Rademacher Observations, Private Data, and Boosting

Arik Friedman, Giorgio Patrini, Richard Nock

arxiv:1502.02322 v2 · 2015-02-09 · 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{K5Z6XS4GARCUJQMSBFDDMQZL2Q}

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	2026-05-18T02:19:43.580872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5773ebcb86044544c192094636432bd412b5fe76a51c430f5a5c1ef195625dd5

Aliases

arxiv: 1502.02322 · arxiv_version: 1502.02322v2 · doi: 10.48550/arxiv.1502.02322 · pith_short_12: K5Z6XS4GARCU · pith_short_16: K5Z6XS4GARCUJQMS · pith_short_8: K5Z6XS4G

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/K5Z6XS4GARCUJQMSBFDDMQZL2Q \
  | 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: 5773ebcb86044544c192094636432bd412b5fe76a51c430f5a5c1ef195625dd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c79dea64445f7f608a066a78d55ede47752fcac0ee4bfd882825efef59504b18",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-02-09T01:12:11Z",
    "title_canon_sha256": "1d539862f81f08cfc8ea9e6fc61eb1983ece3605dd29351ba5cabcd7612c43f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02322",
    "kind": "arxiv",
    "version": 2
  }
}