Pith Number

pith:W5VIQLXN

pith:2020:W5VIQLXN7EKYD23JCPPFTG64AF

not attested not anchored not stored refs pending

Automated Fovea Detection Based on Unsupervised Retinal Vessel Segmentation Method

Faraz Kalantari, Mahdieh Nazar, Meysam Tavakoli, Patrick Kelley

arxiv:2004.08540 v1 · 2020-04-18 · physics.med-ph · 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{W5VIQLXN7EKYD23JCPPFTG64AF}

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	2026-07-05T00:56:06.967480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b76a882eedf91581eb6913de599bdc014270253996ca91db4c695d21ac18772b

Aliases

arxiv: 2004.08540 · arxiv_version: 2004.08540v1 · doi: 10.48550/arxiv.2004.08540 · pith_short_12: W5VIQLXN7EKY · pith_short_16: W5VIQLXN7EKYD23J · pith_short_8: W5VIQLXN

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/W5VIQLXN7EKYD23JCPPFTG64AF \
  | 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: b76a882eedf91581eb6913de599bdc014270253996ca91db4c695d21ac18772b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "964214d1642e0ea18bd7afea94eac34307838aec3f3adc9b8508826f13c5bd21",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2020-04-18T06:36:25Z",
    "title_canon_sha256": "b8f77bdb5bf38bd4955a7cc297eab3544db22c33245dac0a67c79e380f3d15c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.08540",
    "kind": "arxiv",
    "version": 1
  }
}