Pith Number

pith:BGW4HSNH

pith:2011:BGW4HSNHXMLE5IKMLDSHP7BZGU

not attested not anchored not stored refs pending

Robust Sparse Analysis Regularization

Charles Dossal (IMB), Gabriel Peyr\'e (CEREMADE), Jalal Fadili (GREYC), Samuel Vaiter (CEREMADE)

arxiv:1109.6222 v5 · 2011-09-28 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BGW4HSNHXMLE5IKMLDSHP7BZGU}

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	2026-05-18T03:44:15.535892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09adc3c9a7bb164ea14c58e477fc3935093bcdfeb21e866ff8d635e91ceba12f

Aliases

arxiv: 1109.6222 · arxiv_version: 1109.6222v5 · doi: 10.48550/arxiv.1109.6222 · pith_short_12: BGW4HSNHXMLE · pith_short_16: BGW4HSNHXMLE5IKM · pith_short_8: BGW4HSNH

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/BGW4HSNHXMLE5IKMLDSHP7BZGU \
  | 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: 09adc3c9a7bb164ea14c58e477fc3935093bcdfeb21e866ff8d635e91ceba12f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8efe6369b70e2a17137491b32a0ae0025a6a6b53beafe489de210f6d3697c895",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-09-28T14:27:44Z",
    "title_canon_sha256": "0e14c2b5913f834d432590fc3949d050989c7761b811525e71768d86b95471af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6222",
    "kind": "arxiv",
    "version": 5
  }
}