Pith Number

pith:I5VY3W7Y

pith:2017:I5VY3W7YMJTLGGSXKXKLDMCXTL

not attested not anchored not stored refs pending

Perivascular Spaces Segmentation in Brain MRI Using Optimal 3D Filtering

Bradley J. MacIntosh, Joanna M. Wardlaw, Joel Ramirez, Lucia Ballerini, Maria del C. Valdes-Hernandez, Ruggiero Lovreglio, Sandra E. Black

arxiv:1704.07699 v1 · 2017-04-25 · 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{I5VY3W7YMJTLGGSXKXKLDMCXTL}

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	2026-05-18T00:18:41.558933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

476b8ddbf86266b31a5755d4b1b0579ae375d87d3550eda629c705508d55ac54

Aliases

arxiv: 1704.07699 · arxiv_version: 1704.07699v1 · doi: 10.48550/arxiv.1704.07699 · pith_short_12: I5VY3W7YMJTL · pith_short_16: I5VY3W7YMJTLGGSX · pith_short_8: I5VY3W7Y

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/I5VY3W7YMJTLGGSXKXKLDMCXTL \
  | 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: 476b8ddbf86266b31a5755d4b1b0579ae375d87d3550eda629c705508d55ac54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee0feed7509b33fca4b3ba9c35b5baebfd02ec4666ffb4fa81846558bab05083",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-04-25T14:02:06Z",
    "title_canon_sha256": "88b89b4af61046bb771d181fe27d9d779ef56649c88acee316c8c8466ed3d8d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.07699",
    "kind": "arxiv",
    "version": 1
  }
}