Pith Number

pith:VCMJTDWK

pith:2025:VCMJTDWKWK75RC4434VRXOOPTG

not attested not anchored not stored refs pending

Topology Optimization in Medical Image Segmentation with Fast Euler Characteristic

Bernhard Kainz, Cheng Ouyang, Daniel Rueckert, Johannes C. Paetzold, Liu Li, Qiang Ma

arxiv:2507.23763 v2 · 2025-07-31 · 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{VCMJTDWKWK75RC4434VRXOOPTG}

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	2026-07-05T11:48:52.118250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a898998ecab2bfd88b9cdf2b1bb9cf99aafb0af3ff8e7f37ec33f7752e8c86e4

Aliases

arxiv: 2507.23763 · arxiv_version: 2507.23763v2 · doi: 10.48550/arxiv.2507.23763 · pith_short_12: VCMJTDWKWK75 · pith_short_16: VCMJTDWKWK75RC44 · pith_short_8: VCMJTDWK

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/VCMJTDWKWK75RC4434VRXOOPTG \
  | 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: a898998ecab2bfd88b9cdf2b1bb9cf99aafb0af3ff8e7f37ec33f7752e8c86e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45250d55ece84afd36f76abf9f5960b834efc9754f459cb3ac44c71687933be6",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2025-07-31T17:51:04Z",
    "title_canon_sha256": "5db2510033d5208f2436efbe4d8355ce57d3cdfc4f09a68cdda084623219ef4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.23763",
    "kind": "arxiv",
    "version": 2
  }
}