Pith Number

pith:VXRFV5ZV

pith:2019:VXRFV5ZVNNZCISKCLRLPHIZD4J

not attested not anchored not stored refs pending

A deep learning model for segmentation of geographic atrophy to study its long-term natural history

Bart Liefers, Bram van Ginneken, Carel B. Hoyng, Caroline C.W. Klaver, Clara I. S\'anchez, Cristina Gonz\'alez-Gonzalo, Johanna M. Colijn, Paul Mitchell, Timo Verzijden

arxiv:1908.05621 v1 · 2019-08-15 · 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{VXRFV5ZVNNZCISKCLRLPHIZD4J}

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	2026-07-05T01:47:28.895796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ade25af7356b722449425c56f3a323e276a2a15cda7fdd22b36a2a772003499a

Aliases

arxiv: 1908.05621 · arxiv_version: 1908.05621v1 · doi: 10.48550/arxiv.1908.05621 · pith_short_12: VXRFV5ZVNNZC · pith_short_16: VXRFV5ZVNNZCISKC · pith_short_8: VXRFV5ZV

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/VXRFV5ZVNNZCISKCLRLPHIZD4J \
  | 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: ade25af7356b722449425c56f3a323e276a2a15cda7fdd22b36a2a772003499a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4c136251a06363781523ac585946a76ff1dd42e9cb1772af699424489943962",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2019-08-15T16:12:52Z",
    "title_canon_sha256": "6fca20f3c6e96949cf2f67949321e067fdfc0d5122a86761c51d9bf51170cf4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05621",
    "kind": "arxiv",
    "version": 1
  }
}