Pith Number

pith:OD3P6WAA

pith:2014:OD3P6WAAPXK4DYT22X7X7A4SCM

not attested not anchored not stored refs pending

Sparsity Based Methods for Overparameterized Variational Problems

Alfred M. Bruckstein, Michael Elad, Raja Giryes

arxiv:1405.4969 v5 · 2014-05-20 · cs.CV · 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{OD3P6WAAPXK4DYT22X7X7A4SCM}

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	2026-05-18T01:35:20.757561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70f6ff58007dd5c1e27ad5ff7f8392131420b9465b5c951c05eadd94a6f849d6

Aliases

arxiv: 1405.4969 · arxiv_version: 1405.4969v5 · doi: 10.48550/arxiv.1405.4969 · pith_short_12: OD3P6WAAPXK4 · pith_short_16: OD3P6WAAPXK4DYT2 · pith_short_8: OD3P6WAA

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/OD3P6WAAPXK4DYT22X7X7A4SCM \
  | 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: 70f6ff58007dd5c1e27ad5ff7f8392131420b9465b5c951c05eadd94a6f849d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04d0f3118457c1ea414db04a6ed1e80cb9b1d065df3ee7d0259a7ac6e439dcaa",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2014-05-20T06:56:04Z",
    "title_canon_sha256": "4ab02255fd213b19977884e472c42d2cbd146c25b0e961faf1e573544da5eab2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4969",
    "kind": "arxiv",
    "version": 5
  }
}