Pith Number

pith:VVSM37ME

pith:2018:VVSM37ME5XG3J3KTSAC3ZMWTIR

not attested not anchored not stored refs pending

REFUGE CHALLENGE 2018-Task 2:Deep Optic Disc and Cup Segmentation in Fundus Images Using U-Net and Multi-scale Feature Matching Networks

Adel Saleh, Farhan Akram, Hatem A. Rashwan, Md Mostafa Kamal Sarker, Nidhi Pandey, Saddam Abdulwahab, Vivek Kumar Singh

arxiv:1807.11433 v1 · 2018-07-30 · 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{VVSM37ME5XG3J3KTSAC3ZMWTIR}

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	2026-05-18T00:09:31.919139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad64cdfd84edcdb4ed539005bcb2d344663e7647441b1a920b8c687dc26ca082

Aliases

arxiv: 1807.11433 · arxiv_version: 1807.11433v1 · doi: 10.48550/arxiv.1807.11433 · pith_short_12: VVSM37ME5XG3 · pith_short_16: VVSM37ME5XG3J3KT · pith_short_8: VVSM37ME

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/VVSM37ME5XG3J3KTSAC3ZMWTIR \
  | 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: ad64cdfd84edcdb4ed539005bcb2d344663e7647441b1a920b8c687dc26ca082

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c41470e2222adf522229b94ec44f9624c9413abb49cef067aa8d4290cb4c14f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-07-30T16:43:25Z",
    "title_canon_sha256": "6cadab77da1ed7dfe17ec14e39ceb40cf137af94a289de3e9e0aa5661647df63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11433",
    "kind": "arxiv",
    "version": 1
  }
}