Pith Number

pith:L27KUDDZ

pith:2020:L27KUDDZTY6ZBMBQHO4ITT2ZK2

not attested not anchored not stored refs pending

A New Screening Method for COVID-19 based on Ocular Feature Recognition by Machine Learning Tools

Feng Li, Haicheng Tang, Mengwei Gu, Wenxuan Wang, Xiangyang Xue, Xuelin Qian, Yanwei Fu

arxiv:2009.03184 v1 · 2020-09-04 · eess.IV · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L27KUDDZTY6ZBMBQHO4ITT2ZK2}

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	2026-07-05T01:33:29.941833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ebeaa0c799e3d90b0303bb889cf59568b1332efbdbc152b3405fffb7c2096cc

Aliases

arxiv: 2009.03184 · arxiv_version: 2009.03184v1 · doi: 10.48550/arxiv.2009.03184 · pith_short_12: L27KUDDZTY6Z · pith_short_16: L27KUDDZTY6ZBMBQ · pith_short_8: L27KUDDZ

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/L27KUDDZTY6ZBMBQHO4ITT2ZK2 \
  | 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: 5ebeaa0c799e3d90b0303bb889cf59568b1332efbdbc152b3405fffb7c2096cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98c0419d59ad0702c3c83ea7a3db84dafb2139376c9ef6e1c969ec6b29492a43",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2020-09-04T00:50:27Z",
    "title_canon_sha256": "c3a02b3d2b7f7e2a855e81449ab62771b8afc52c23b077476e2a2efa4c71733a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.03184",
    "kind": "arxiv",
    "version": 1
  }
}