Pith Number

pith:QWQM7VDA

pith:2012:QWQM7VDANFL5JIJTDCHOG64B65

not attested not anchored not stored refs pending

Deconvolving Images with Unknown Boundaries Using the Alternating Direction Method of Multipliers

Mariana S. C. Almeida, M\'ario A. T. Figueiredo

arxiv:1210.2687 v2 · 2012-10-09 · math.OC · 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{QWQM7VDANFL5JIJTDCHOG64B65}

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	2026-05-18T01:54:03.930747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85a0cfd4606957d4a133188ee37b81f75257aa9a02852eb86170e757a9b03e8d

Aliases

arxiv: 1210.2687 · arxiv_version: 1210.2687v2 · doi: 10.48550/arxiv.1210.2687 · pith_short_12: QWQM7VDANFL5 · pith_short_16: QWQM7VDANFL5JIJT · pith_short_8: QWQM7VDA

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/QWQM7VDANFL5JIJTDCHOG64B65 \
  | 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: 85a0cfd4606957d4a133188ee37b81f75257aa9a02852eb86170e757a9b03e8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9ce9e9e1dbb7d90bc7d999500858c480f78b9b4b86cfccc5815567092492aec",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-10-09T18:42:10Z",
    "title_canon_sha256": "0fdd1269e48803a4fa2311d8ef7b0bcd06fa1de95f0c50a9c9e17495dc91256f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.2687",
    "kind": "arxiv",
    "version": 2
  }
}