Pith Number

pith:BA2UWQGU

pith:2026:BA2UWQGUOARKIOX5FBJRI26GL7

not attested not anchored not stored refs pending

Density-Ratio Losses for Post-Hoc Learning to Defer

Alexander Soen, Joakim Jald\'en, Ragnar Thobaben, Richard Nock

arxiv:2605.19557 v1 · 2026-05-19 · stat.ML · 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{BA2UWQGUOARKIOX5FBJRI26GL7}

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	2026-05-20T01:05:51.685387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08354b40d47022a43afd2853146bc65ffb6d09cb5fa0e58f4336de2b1e305180

Aliases

arxiv: 2605.19557 · arxiv_version: 2605.19557v1 · doi: 10.48550/arxiv.2605.19557 · pith_short_12: BA2UWQGUOARK · pith_short_16: BA2UWQGUOARKIOX5 · pith_short_8: BA2UWQGU

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/BA2UWQGUOARKIOX5FBJRI26GL7 \
  | 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: 08354b40d47022a43afd2853146bc65ffb6d09cb5fa0e58f4336de2b1e305180

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d679f8e8eabfa05c1ee9944bfba7bccfe7d0ee4061b173b48e1aad5b64ea52e",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2026-05-19T08:56:23Z",
    "title_canon_sha256": "13be2f7f595205eff2b80ff21765724eb88d06965b36cbaadff9f8d0e7cd385f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19557",
    "kind": "arxiv",
    "version": 1
  }
}