Pith Number

pith:PIFCESGB

pith:2026:PIFCESGBY6OGO3OWEKBZA2RBTQ

not attested not anchored not stored refs pending

Covariance Last-Layer Ensembles: Function-Space Diversity for Efficient Uncertainty Quantification

Gabriel Spadon, H. Martin Gillis, Isaac Xu, Thomas Trappenberg

arxiv:2607.23856 v1 · 2026-07-26 · 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{PIFCESGBY6OGO3OWEKBZA2RBTQ}

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	2026-07-28T01:23:14.637209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a0a2248c1c79c676dd62283906a219c0c85b7b513604dfd045c54cf342c6040

Aliases

arxiv: 2607.23856 · arxiv_version: 2607.23856v1 · doi: 10.48550/arxiv.2607.23856 · pith_short_12: PIFCESGBY6OG · pith_short_16: PIFCESGBY6OGO3OW · pith_short_8: PIFCESGB

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/PIFCESGBY6OGO3OWEKBZA2RBTQ \
  | 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: 7a0a2248c1c79c676dd62283906a219c0c85b7b513604dfd045c54cf342c6040

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7a119746f694388c8fb56880a4fe6bfba364b6289f4b9d5861b10c88b03e604",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-26T21:56:02Z",
    "title_canon_sha256": "9335a887c09fe8f8df5e027bb68eb87a78e31ff425eaadca2774b522f0c6c234"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.23856",
    "kind": "arxiv",
    "version": 1
  }
}