Pith Number

pith:FQXVA2KC

pith:2022:FQXVA2KC3YZMAZR6DZACGIYH4P

not attested not anchored not stored refs pending

COVID-19 Classification Using Deep Learning Two-Stage Approach

Ahmed Altaher, Ali Saleem Altaher, Mostapha Alsaidi, Muhammad Tanveer Jan, Zahra Salekshahrezaee

arxiv:2211.15817 v1 · 2022-11-28 · 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{FQXVA2KC3YZMAZR6DZACGIYH4P}

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	2026-07-05T05:20:18.542711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c2f506942de32c0663e1e40232307e3f20f18f94bdfc6fb8a323cc2330f3541

Aliases

arxiv: 2211.15817 · arxiv_version: 2211.15817v1 · doi: 10.48550/arxiv.2211.15817 · pith_short_12: FQXVA2KC3YZM · pith_short_16: FQXVA2KC3YZMAZR6 · pith_short_8: FQXVA2KC

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/FQXVA2KC3YZMAZR6DZACGIYH4P \
  | 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: 2c2f506942de32c0663e1e40232307e3f20f18f94bdfc6fb8a323cc2330f3541

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00c83ba14012c8465502726538666e6d42b911aec1dbb97d0aa28a9820b15ab9",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2022-11-28T23:03:29Z",
    "title_canon_sha256": "d8a351a94736381ac1d9e4e839566e6d62cb84a562f42d68c77b1b9782d845ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.15817",
    "kind": "arxiv",
    "version": 1
  }
}