Pith Number

pith:O4UDPYKV

pith:2013:O4UDPYKV4AOLI64AAEKYQUZTS6

not attested not anchored not stored refs pending

Comparison bewteen multi-task and single-task oracle risks in kernel ridge regression

INRIA Paris - Rocquencourt), Matthieu Solnon (LIENS

arxiv:1307.5286 v1 · 2013-07-19 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O4UDPYKV4AOLI64AAEKYQUZTS6}

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	2026-05-18T03:18:05.257475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

772837e155e01cb47b800115885333978288a408addadf86154db65a6479fe31

Aliases

arxiv: 1307.5286 · arxiv_version: 1307.5286v1 · doi: 10.48550/arxiv.1307.5286 · pith_short_12: O4UDPYKV4AOL · pith_short_16: O4UDPYKV4AOLI64A · pith_short_8: O4UDPYKV

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/O4UDPYKV4AOLI64AAEKYQUZTS6 \
  | 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: 772837e155e01cb47b800115885333978288a408addadf86154db65a6479fe31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74661e142e40901a12d36e6fd7e72cdc66306817331933eef3433acbf8d1fa96",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2013-07-19T17:25:30Z",
    "title_canon_sha256": "948d65bbc5da0b01f1837ef2862ea8a1476dd9e92c94753ca97aa1dfe28cedb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5286",
    "kind": "arxiv",
    "version": 1
  }
}