Pith Number

pith:JRAO2KZX

pith:2021:JRAO2KZXD2I7I2QHVKFQZKXTXR

not attested not anchored not stored refs pending

Unified Focal loss: Generalising Dice and cross entropy-based losses to handle class imbalanced medical image segmentation

Carola-Bibiane Sch\"onlieb, Evis Sala, Leonardo Rundo, Michael Yeung

arxiv:2102.04525 v4 · 2021-02-08 · eess.IV · cs.CV · 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{JRAO2KZXD2I7I2QHVKFQZKXTXR}

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.

Cited by

1 paper in Pith

Challenges in Deep Learning-Based Small Organ Segmentation: A Benchmarking Perspective for Medical Research with Limited Datasets

Receipt and verification

First computed	2026-07-05T03:34:42.894225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c40ed2b371e91f46a07aa8b0caaf3bc5c34c6cc9fa9f333b5b0cc4abf52792a

Aliases

arxiv: 2102.04525 · arxiv_version: 2102.04525v4 · doi: 10.48550/arxiv.2102.04525 · pith_short_12: JRAO2KZXD2I7 · pith_short_16: JRAO2KZXD2I7I2QH · pith_short_8: JRAO2KZX

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/JRAO2KZXD2I7I2QHVKFQZKXTXR \
  | 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: 4c40ed2b371e91f46a07aa8b0caaf3bc5c34c6cc9fa9f333b5b0cc4abf52792a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5273d530c4b1c8eca03ded3c63a9cada1ae97fc2117ad34ccc0232827efca54",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-02-08T20:47:38Z",
    "title_canon_sha256": "6f5521e36254007d2ec9b4bfbbee74751fd079d8a5ee43cdbabaaacbb042e0d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.04525",
    "kind": "arxiv",
    "version": 4
  }
}