Pith Number

pith:TOOCVPWU

pith:2010:TOOCVPWUNYYZC6STQLZVWOMD2H

not attested not anchored not stored refs pending

Model Selection with the Loss Rank Principle

Marcus Hutter, Minh-Ngoc Tran

arxiv:1003.0516 v1 · 2010-03-02 · 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{TOOCVPWUNYYZC6STQLZVWOMD2H}

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	2026-05-18T04:40:00.625895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b9c2abed46e31917a5382f35b3983d1cac69d12e70d5c20f5b016af0c30b05b

Aliases

arxiv: 1003.0516 · arxiv_version: 1003.0516v1 · doi: 10.48550/arxiv.1003.0516 · pith_short_12: TOOCVPWUNYYZ · pith_short_16: TOOCVPWUNYYZC6ST · pith_short_8: TOOCVPWU

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/TOOCVPWUNYYZC6STQLZVWOMD2H \
  | 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: 9b9c2abed46e31917a5382f35b3983d1cac69d12e70d5c20f5b016af0c30b05b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "652837181cbeb6097d119678415c4b12021c162f8559dcd5ed070c64deed92e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2010-03-02T08:21:07Z",
    "title_canon_sha256": "b6f63d9cd0ad6b23e6a174085655e4b8557b325abe2d6c238d8e6d3be7897f95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.0516",
    "kind": "arxiv",
    "version": 1
  }
}