Pith Number

pith:6VTPE7C4

pith:2012:6VTPE7C4KGA2YEGOT2REIWAATB

not attested not anchored not stored refs pending

Sparse regularization for fiber ODF reconstruction: from the suboptimality of $\ell_2$ and $\ell_1$ priors to $\ell_0$

Alessandro Daducci, Dimitri Van De Ville, Jean-Philippe Thiran, Yves Wiaux

arxiv:1208.2247 v3 · 2012-08-10 · q-bio.QM · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6VTPE7C4KGA2YEGOT2REIWAATB}

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	2026-05-18T03:03:44.724152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f566f27c5c5181ac10ce9ea2445800986ec832c2f4fc672ce501b48bcb60f94f

Aliases

arxiv: 1208.2247 · arxiv_version: 1208.2247v3 · doi: 10.48550/arxiv.1208.2247 · pith_short_12: 6VTPE7C4KGA2 · pith_short_16: 6VTPE7C4KGA2YEGO · pith_short_8: 6VTPE7C4

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/6VTPE7C4KGA2YEGOT2REIWAATB \
  | 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: f566f27c5c5181ac10ce9ea2445800986ec832c2f4fc672ce501b48bcb60f94f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17b174a47f8c6b1dc76b68bb34d3fa5438f5a235d607f2ea1f6a5f223fb58f68",
    "cross_cats_sorted": [
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2012-08-10T18:44:28Z",
    "title_canon_sha256": "587103501b070c4da42ee3bb1f03fcd4f3d6a5a976c861235775e32b49dffaa1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.2247",
    "kind": "arxiv",
    "version": 3
  }
}