Pith Number

pith:WWQK5XRU

pith:2012:WWQK5XRUWO2PWUNNJJ2FES6AQR

not attested not anchored not stored refs pending

Blockwise SVD with error in the operator and application to blind deconvolution

D. Picard, M. Hoffmann, S. Delattre, T. Vareschi

arxiv:1204.2964 v1 · 2012-04-13 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WWQK5XRUWO2PWUNNJJ2FES6AQR}

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	2026-05-18T03:57:54.400301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5a0aede34b3b4fb51ad4a74524bc084528f304481c8a54c1305aaf8bd519a10

Aliases

arxiv: 1204.2964 · arxiv_version: 1204.2964v1 · doi: 10.48550/arxiv.1204.2964 · pith_short_12: WWQK5XRUWO2P · pith_short_16: WWQK5XRUWO2PWUNN · pith_short_8: WWQK5XRU

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/WWQK5XRUWO2PWUNNJJ2FES6AQR \
  | 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: b5a0aede34b3b4fb51ad4a74524bc084528f304481c8a54c1305aaf8bd519a10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90ad54bbdeab834ce89bd7bf11352f7a30d1f686ce24eb38047ac98dbd8c582b",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2012-04-13T12:02:35Z",
    "title_canon_sha256": "7e1644906f374d46545c1254cdd04bbcbe31bce350a4938445d154347d4a446e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2964",
    "kind": "arxiv",
    "version": 1
  }
}