Pith Number

pith:JP3RO5QD

pith:2024:JP3RO5QDHHAWA6HY75IFIJRRXQ

not attested not anchored not stored refs pending

MTLComb: multi-task learning combining regression and classification tasks for joint feature selection

Bianka Hahn, Daniel Durstewitz, Emanuel Schwarz, Ersoy Kocak, Han Cao, Sivanesan Rajan, Verena Schneider-Lindner

arxiv:2405.09886 v1 · 2024-05-16 · cs.LG · cs.AI · q-bio.BM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JP3RO5QDHHAWA6HY75IFIJRRXQ}

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	2026-07-05T08:19:50.052888Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bf717760339c16078f8ff50542631bc1fbfa2b17590edb8af773451f7480693

Aliases

arxiv: 2405.09886 · arxiv_version: 2405.09886v1 · doi: 10.48550/arxiv.2405.09886 · pith_short_12: JP3RO5QDHHAW · pith_short_16: JP3RO5QDHHAWA6HY · pith_short_8: JP3RO5QD

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/JP3RO5QDHHAWA6HY75IFIJRRXQ \
  | 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: 4bf717760339c16078f8ff50542631bc1fbfa2b17590edb8af773451f7480693

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e44034a1accc74f472d2a8ebbbf51c0ebb704a1e642f1038983b294528a907ea",
    "cross_cats_sorted": [
      "cs.AI",
      "q-bio.BM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2024-05-16T08:07:25Z",
    "title_canon_sha256": "0b38b8c788ed2e90899da855ae75745e5b00019d38b3f46c9869660bf95c6c43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.09886",
    "kind": "arxiv",
    "version": 1
  }
}