Pith Number

pith:XMOJXAIT

pith:2012:XMOJXAITMCRXNM5RULR5LB76S3

not attested not anchored not stored refs pending

Regularization of Linear Ill-posed Problems by the Augmented Lagrangian Method and Variational Inequalities

Klaus Frick, Markus Grasmair

arxiv:1204.0771 v1 · 2012-04-03 · math.NA · 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{XMOJXAITMCRXNM5RULR5LB76S3}

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	2026-05-18T01:57:57.520150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb1c9b811360a376b3b1a2e3d587fe96d2bfe3197a8f97a72afc1e37a6d28f99

Aliases

arxiv: 1204.0771 · arxiv_version: 1204.0771v1 · doi: 10.48550/arxiv.1204.0771 · pith_short_12: XMOJXAITMCRX · pith_short_16: XMOJXAITMCRXNM5R · pith_short_8: XMOJXAIT

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/XMOJXAITMCRXNM5RULR5LB76S3 \
  | 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: bb1c9b811360a376b3b1a2e3d587fe96d2bfe3197a8f97a72afc1e37a6d28f99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f70f8fcaa4f7f56b97b5083dd86ef222817ab29c4a8cd12dab0c645ffe3ce586",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-04-03T19:19:29Z",
    "title_canon_sha256": "f74f798c913bdabc51607ec20b38008cce8ad1c9cf8792e1b7c2b32ef5a1fad6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0771",
    "kind": "arxiv",
    "version": 1
  }
}