Pith Number

pith:PBDX5NIZ

pith:2022:PBDX5NIZXI3VH4TOHJBYS7XGJB

not attested not anchored not stored refs pending

Self-Supervision and Multi-Task Learning: Challenges in Fine-Grained COVID-19 Multi-Class Classification from Chest X-rays

Ameera Ali Bawazir, Ibrahim Almakky, Ivo Gollini Navarette, Mohammad Yaqub, Muhammad Ridzuan

arxiv:2201.06052 v2 · 2022-01-16 · 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{PBDX5NIZXI3VH4TOHJBYS7XGJB}

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	2026-07-05T04:34:49.816146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78477eb519ba3753f26e3a43897ee6487beeab4298178f49f35df025caeadfc2

Aliases

arxiv: 2201.06052 · arxiv_version: 2201.06052v2 · doi: 10.48550/arxiv.2201.06052 · pith_short_12: PBDX5NIZXI3V · pith_short_16: PBDX5NIZXI3VH4TO · pith_short_8: PBDX5NIZ

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/PBDX5NIZXI3VH4TOHJBYS7XGJB \
  | 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: 78477eb519ba3753f26e3a43897ee6487beeab4298178f49f35df025caeadfc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e75f3ed4b1a4655950355c92424583fb8c6c21df6777d272a12330c69590eb11",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2022-01-16T14:12:04Z",
    "title_canon_sha256": "7b94889fb03487a5d8b133a6d56c8e07ef5cf7fb78c3e6430108d37077bd512a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.06052",
    "kind": "arxiv",
    "version": 2
  }
}