Pith Number

pith:QIAC7A3J

pith:2019:QIAC7A3JEAO3VAN5U5FJ7BGJ7F

not attested not anchored not stored refs pending

Multimodal Sparse Classifier for Adolescent Brain Age Prediction

Alexej Gossmann, Peyman Hosseinzadeh Kassani, Yu-Ping Wang

arxiv:1904.01070 v1 · 2019-04-01 · cs.LG · cs.NE · q-bio.NC · 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{QIAC7A3JEAO3VAN5U5FJ7BGJ7F}

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	2026-05-17T23:49:37.983796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82002f8369201dba81bda74a9f84c9f9605910a50a20425105fbdd2036ea6bf9

Aliases

arxiv: 1904.01070 · arxiv_version: 1904.01070v1 · doi: 10.48550/arxiv.1904.01070 · pith_short_12: QIAC7A3JEAO3 · pith_short_16: QIAC7A3JEAO3VAN5 · pith_short_8: QIAC7A3J

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/QIAC7A3JEAO3VAN5U5FJ7BGJ7F \
  | 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: 82002f8369201dba81bda74a9f84c9f9605910a50a20425105fbdd2036ea6bf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48dcd94664a3f1c3ce3612a9733f1699d19aa3970b5753e0e524f37fc7089f0d",
    "cross_cats_sorted": [
      "cs.NE",
      "q-bio.NC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-04-01T19:13:07Z",
    "title_canon_sha256": "af7b0e82690e50a38cb655de5ebbf6b1d30ddebf512d3084597e9620005b1827"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01070",
    "kind": "arxiv",
    "version": 1
  }
}