Pith Number

pith:OQRHHAFE

pith:2021:OQRHHAFELCNNQ4XRUI7GR7R5QL

not attested not anchored not stored refs pending

Explainable AI For COVID-19 CT Classifiers: An Initial Comparison Study

Guang Yang, Jun Xia, Qinghao Ye

arxiv:2104.14506 v1 · 2021-04-25 · cs.LG · cs.CV · 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{OQRHHAFELCNNQ4XRUI7GR7R5QL}

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	2026-07-05T02:36:17.360147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74227380a4589ad872f1a23e68fe3d82c99728cda9bcd0586b1bbd4ec40091dc

Aliases

arxiv: 2104.14506 · arxiv_version: 2104.14506v1 · doi: 10.48550/arxiv.2104.14506 · pith_short_12: OQRHHAFELCNN · pith_short_16: OQRHHAFELCNNQ4XR · pith_short_8: OQRHHAFE

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/OQRHHAFELCNNQ4XRUI7GR7R5QL \
  | 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: 74227380a4589ad872f1a23e68fe3d82c99728cda9bcd0586b1bbd4ec40091dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40b47a2b4361f36217967b79b0b8d1c5c6979af924ec74b1baa8345181257563",
    "cross_cats_sorted": [
      "cs.CV",
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-04-25T23:39:14Z",
    "title_canon_sha256": "17517c048012f8ffb9e8ccf62b84303e671d17506d172a40d70e71cdc2edfa16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.14506",
    "kind": "arxiv",
    "version": 1
  }
}