Pith Number

pith:I2RGP5QH

pith:2025:I2RGP5QHISP2VW6ECMSUMDMYME

not attested not anchored not stored refs pending

Validation of a CT-brain analysis tool for measuring global cortical atrophy in older patient cohorts

Emma Colbourne, Jasmine Gan, Jim Davies, Ludovica Griffanti, Mark Jenkinson, Nele Demeyere, Sarah T Pendlebury, Sukhdeep Bal, Taylor Hanayik

arxiv:2509.08012 v1 · 2025-09-08 · eess.IV · cs.AI · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I2RGP5QHISP2VW6ECMSUMDMYME}

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	2026-07-05T12:08:09.757303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46a267f607449faadbc41325460d9861227233441feaf26595d93ebd556cbb78

Aliases

arxiv: 2509.08012 · arxiv_version: 2509.08012v1 · doi: 10.48550/arxiv.2509.08012 · pith_short_12: I2RGP5QHISP2 · pith_short_16: I2RGP5QHISP2VW6E · pith_short_8: I2RGP5QH

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/I2RGP5QHISP2VW6ECMSUMDMYME \
  | 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: 46a267f607449faadbc41325460d9861227233441feaf26595d93ebd556cbb78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9a328221af339519c8c848e2f7cad1b106a5536726e302cff2a6b43852207d3",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2025-09-08T20:04:35Z",
    "title_canon_sha256": "522e54687124253c6baa77f6621bfbe1fe7443b462be4adfc8c1d18dd91d38de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.08012",
    "kind": "arxiv",
    "version": 1
  }
}