Pith Number

pith:MQ63WDWL

pith:2019:MQ63WDWLFOO6U67H3YYRPGUTW7

not attested not anchored not stored refs pending

A Topological Loss Function for Deep-Learning based Image Segmentation using Persistent Homology

Andrew P. King, Ilkay Oksuz, James R. Clough, Julia A. Schnabel, Nicholas Byrne, Veronika A. Zimmer

arxiv:1910.01877 v2 · 2019-10-04 · cs.CV · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MQ63WDWLFOO6U67H3YYRPGUTW7}

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	2026-07-05T01:36:15.401615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

643dbb0ecb2b9dea7be7de31179a93b7ca53c289e6b700b1e39bde70e83d017e

Aliases

arxiv: 1910.01877 · arxiv_version: 1910.01877v2 · doi: 10.48550/arxiv.1910.01877 · pith_short_12: MQ63WDWLFOO6 · pith_short_16: MQ63WDWLFOO6U67H · pith_short_8: MQ63WDWL

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/MQ63WDWLFOO6U67H3YYRPGUTW7 \
  | 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: 643dbb0ecb2b9dea7be7de31179a93b7ca53c289e6b700b1e39bde70e83d017e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5484a0b0e7616fdde1f07d42e1eee350e90085d73a85db1b49bdc752dd55db6e",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-10-04T11:18:49Z",
    "title_canon_sha256": "4fae48f6a6b1a75288f9a57347b16427212f307291b6e4be9a38a362c1317b81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.01877",
    "kind": "arxiv",
    "version": 2
  }
}