Pith Number

pith:UUJQFBLL

pith:2021:UUJQFBLLPU4D3HXCS7S7TJRSJV

not attested not anchored not stored refs pending

Region-wise Loss for Biomedical Image Segmentation

Juan Miguel Valverde, Jussi Tohka

arxiv:2108.01405 v2 · 2021-08-03 · eess.IV · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UUJQFBLLPU4D3HXCS7S7TJRSJV}

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	2026-07-05T04:09:14.779402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a51302856b7d383d9ee297e5f9a6324d7aac83fb4fdce2381c5516844dab22e2

Aliases

arxiv: 2108.01405 · arxiv_version: 2108.01405v2 · doi: 10.48550/arxiv.2108.01405 · pith_short_12: UUJQFBLLPU4D · pith_short_16: UUJQFBLLPU4D3HXC · pith_short_8: UUJQFBLL

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/UUJQFBLLPU4D3HXCS7S7TJRSJV \
  | 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: a51302856b7d383d9ee297e5f9a6324d7aac83fb4fdce2381c5516844dab22e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a21d2a55e75ea71a7fb5ffd3e397c82e059f6668192b7577226fe53ffb0788c",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-08-03T10:38:21Z",
    "title_canon_sha256": "b5749ab4a1ae37a618dc9c67c396e71ad40a7fdd410cf865d470c78a3d96eb7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.01405",
    "kind": "arxiv",
    "version": 2
  }
}