Pith Number

pith:U2LGQTGA

pith:2014:U2LGQTGASF7H36UTSGE6P4BZFB

not attested not anchored not stored refs pending

Euclid in a Taxicab: Sparse Blind Deconvolution with Smoothed l1/l2 Regularization

Audrey Repetti, Emilie Chouzenoux, Jean-Christophe Pesquet, Laurent Duval, Mai Quyen Pham

arxiv:1407.5465 v3 · 2014-07-21 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2LGQTGASF7H36UTSGE6P4BZFB}

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	2026-05-18T02:38:09.472886Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a696684cc0917e7dfa939189e7f039286181734f53d69f28c05e2cb017b47db4

Aliases

arxiv: 1407.5465 · arxiv_version: 1407.5465v3 · doi: 10.48550/arxiv.1407.5465 · pith_short_12: U2LGQTGASF7H · pith_short_16: U2LGQTGASF7H36UT · pith_short_8: U2LGQTGA

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/U2LGQTGASF7H36UTSGE6P4BZFB \
  | 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: a696684cc0917e7dfa939189e7f039286181734f53d69f28c05e2cb017b47db4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04c9323b4e854b3582a0b637c47c7ee13f29e5c07de4aaa1fc5e82b948f8255e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-07-21T11:49:24Z",
    "title_canon_sha256": "f0d4072fbf904a813669e6e748b350d6a828a85a80e856bff122eee0c067aa84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.5465",
    "kind": "arxiv",
    "version": 3
  }
}