Pith Number

pith:N4CNM74J

pith:2016:N4CNM74JZAZYKUVKXRMFOQHQOC

not attested not anchored not stored refs pending

Efficient Second Order Online Learning by Sketching

Alekh Agarwal, Haipeng Luo, John Langford, Nicolo Cesa-Bianchi

arxiv:1602.02202 v4 · 2016-02-06 · 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{N4CNM74JZAZYKUVKXRMFOQHQOC}

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	2026-05-18T00:32:44.694531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f04d67f89c8338552aabc585740f07092743bf4137fb92091e319228af167c7

Aliases

arxiv: 1602.02202 · arxiv_version: 1602.02202v4 · doi: 10.48550/arxiv.1602.02202 · pith_short_12: N4CNM74JZAZY · pith_short_16: N4CNM74JZAZYKUVK · pith_short_8: N4CNM74J

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/N4CNM74JZAZYKUVKXRMFOQHQOC \
  | 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: 6f04d67f89c8338552aabc585740f07092743bf4137fb92091e319228af167c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "538615646d84dbad15b002bb26a42a3de600a9e8c111b874728ef4f49f6f5c2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-02-06T02:33:53Z",
    "title_canon_sha256": "fb3a0aa98c3995eb6a19ff05ac3c5b2b713183b61bb93fe366bdb91822bfd11c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02202",
    "kind": "arxiv",
    "version": 4
  }
}