Pith Number

pith:WCHWDGAH

pith:2026:WCHWDGAHJMIX3JZRTMMXCGT6RV

not attested not anchored not stored refs pending

Structuring Sparsity: Block-Sparse Featurizers Capture Visual Concept Manifolds

Aiden Swann, Atticus Geiger, Can Rager, Curt Tigges, Daniel Wurgaft, Dron Hazra, Ekdeep Singh Lubana, Fenil Doshi, Jack Merullo, Lee Sharkey, Lucius Bushnaq, Matthew Kowal, Michael Pearce, Mozes Jacobs, Nick Cammarata, Owen Lewis, Satchel Grant, Siddharth Boppana, Tal Haklay, Thomas Fel, Thomas Icard, Thomas McGrath, Thomas Serre, Usha Bhalla, Vasudev Shyam

arxiv:2606.25234 v1 · 2026-06-23 · 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{WCHWDGAHJMIX3JZRTMMXCGT6RV}

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	2026-06-25T00:18:21.728789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b08f6198074b117da7319b19711a7e8d48347f5b77091d07312469a570d87de6

Aliases

arxiv: 2606.25234 · arxiv_version: 2606.25234v1 · doi: 10.48550/arxiv.2606.25234 · pith_short_12: WCHWDGAHJMIX · pith_short_16: WCHWDGAHJMIX3JZR · pith_short_8: WCHWDGAH

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/WCHWDGAHJMIX3JZRTMMXCGT6RV \
  | 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: b08f6198074b117da7319b19711a7e8d48347f5b77091d07312469a570d87de6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fc5eb337e19a22bca0b2c8b190a3ae978afd6da6c5a660e620c608d442176a4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-06-23T23:28:30Z",
    "title_canon_sha256": "5ad7ae01d71cd4805490fe924c88efbab1cf57c8236360de2b779e8ad5ed9cf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.25234",
    "kind": "arxiv",
    "version": 1
  }
}