Pith Number

pith:2B7U4QKS

pith:2021:2B7U4QKSLLDRQWWE2BYGMMC6D4

not attested not anchored not stored refs pending

Explainability Guided Multi-Site COVID-19 CT Classification

Ameen Ali, Lior Wolf, Tal Shaharabany

arxiv:2103.13677 v1 · 2021-03-25 · 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{2B7U4QKSLLDRQWWE2BYGMMC6D4}

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	2026-07-05T02:26:21.622607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d07f4e41525ac7185ac4d07066305e1f39d4f4d07fd55e04e1353d2f3a775224

Aliases

arxiv: 2103.13677 · arxiv_version: 2103.13677v1 · doi: 10.48550/arxiv.2103.13677 · pith_short_12: 2B7U4QKSLLDR · pith_short_16: 2B7U4QKSLLDRQWWE · pith_short_8: 2B7U4QKS

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/2B7U4QKSLLDRQWWE2BYGMMC6D4 \
  | 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: d07f4e41525ac7185ac4d07066305e1f39d4f4d07fd55e04e1353d2f3a775224

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3786eeb33a78cfb40e3e3335068d519f4537530f38c2eaabb60106aaed86d484",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-03-25T08:56:08Z",
    "title_canon_sha256": "3a862a555d3381f23e8855b3fa0506080ffe9c8608adb5c1c892cc8dd54dd87e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.13677",
    "kind": "arxiv",
    "version": 1
  }
}