Pith Number

pith:K3NC2BYZ

pith:2021:K3NC2BYZS4YLRA7CXNGYDIJPZX

not attested not anchored not stored refs pending

Expectation-Maximization Regularized Deep Learning for Weakly Supervised Tumor Segmentation for Glioblastoma

Carola-Bibiane Sch\"onlieb, Chao Li, Stephen J. Price, Wenjian Huang, Xi Chen, Yiran Wei

arxiv:2101.08757 v4 · 2021-01-21 · eess.IV · cs.CV · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K3NC2BYZS4YLRA7CXNGYDIJPZX}

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	2026-07-05T02:58:05.497881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56da2d07199730b883e2bb4d81a12fcdf5313bd12c961f2868601d0a5905abf2

Aliases

arxiv: 2101.08757 · arxiv_version: 2101.08757v4 · doi: 10.48550/arxiv.2101.08757 · pith_short_12: K3NC2BYZS4YL · pith_short_16: K3NC2BYZS4YLRA7C · pith_short_8: K3NC2BYZ

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/K3NC2BYZS4YLRA7CXNGYDIJPZX \
  | 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: 56da2d07199730b883e2bb4d81a12fcdf5313bd12c961f2868601d0a5905abf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67b8cdbc6b84f2c9093a6bfcb002d9c3f559e839750e586b8456fc49c0abb5d4",
    "cross_cats_sorted": [
      "cs.CV",
      "q-bio.QM"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-01-21T18:14:43Z",
    "title_canon_sha256": "24faaf63c47afac3065f0af66581d30788981f9977efa0afaaf83c5b0b7a3802"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.08757",
    "kind": "arxiv",
    "version": 4
  }
}