Pith Number

pith:NXFU6NVA

pith:2020:NXFU6NVAMV752LB7KCZALWI3FJ

not attested not anchored not stored refs pending

Clustering COVID-19 Lung Scans

Andrew Householder, Fredrick Park, Jacob Householder, John Paul Gomez-Reed, Shuai Zhang

arxiv:2009.09899 v2 · 2020-09-05 · cs.CV · cs.LG · eess.IV · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NXFU6NVAMV752LB7KCZALWI3FJ}

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	2026-07-05T03:36:35.014786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6dcb4f36a0657fdd2c3f50b205d91b2a5c4aad15c7ca43b37fda58e181b78677

Aliases

arxiv: 2009.09899 · arxiv_version: 2009.09899v2 · doi: 10.48550/arxiv.2009.09899 · pith_short_12: NXFU6NVAMV75 · pith_short_16: NXFU6NVAMV752LB7 · pith_short_8: NXFU6NVA

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/NXFU6NVAMV752LB7KCZALWI3FJ \
  | 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: 6dcb4f36a0657fdd2c3f50b205d91b2a5c4aad15c7ca43b37fda58e181b78677

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd77881c5a6eb217b4b0515714dfc973d2c86d03c21fa2fcf014a76990172863",
    "cross_cats_sorted": [
      "cs.LG",
      "eess.IV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-09-05T00:21:13Z",
    "title_canon_sha256": "bb3d4047d2b8b43c7d8520eda7e88de283d3008141a8eec4a619a4fe44cbe3a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.09899",
    "kind": "arxiv",
    "version": 2
  }
}