Pith Number

pith:LSPQPBIS

pith:2019:LSPQPBISHPMGYD2JHXIUI4UP5A

not attested not anchored not stored refs pending

3D U$^2$-Net: A 3D Universal U-Net for Multi-Domain Medical Image Segmentation

Chao Huang, Hu Han, Qingsong Yao, Shankuan Zhu, S. Kevin Zhou

arxiv:1909.06012 v1 · 2019-09-04 · 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{LSPQPBISHPMGYD2JHXIUI4UP5A}

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	2026-07-05T00:04:31.684905Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c9f0785123bd86c0f493dd144728fe83de724574075f27c0979e214867fac21

Aliases

arxiv: 1909.06012 · arxiv_version: 1909.06012v1 · doi: 10.48550/arxiv.1909.06012 · pith_short_12: LSPQPBISHPMG · pith_short_16: LSPQPBISHPMGYD2J · pith_short_8: LSPQPBIS

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/LSPQPBISHPMGYD2JHXIUI4UP5A \
  | 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: 5c9f0785123bd86c0f493dd144728fe83de724574075f27c0979e214867fac21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3662371976c9a3d282f438d5fd089036912042e2d6d35ea2d15872948492b04",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2019-09-04T15:03:08Z",
    "title_canon_sha256": "e36959d55f4d7b4af073d524f7ace437a10d4b0d6933aafe91ca06c34aed3185"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.06012",
    "kind": "arxiv",
    "version": 1
  }
}