Pith Number

pith:6AZQLGCD

pith:2011:6AZQLGCDQMCLJR2TF5JPPNMVDW

not attested not anchored not stored refs pending

On a generalization of the iterative soft-thresholding algorithm for the case of non-separable penalty

Caroline Verhoeven, Ignace Loris

arxiv:1104.1087 v3 · 2011-04-06 · 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{6AZQLGCDQMCLJR2TF5JPPNMVDW}

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	2026-05-18T04:03:32.419043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0330598438304b4c7532f52f7b5951d943f4c5e00bc4fd9e57bb92f3adef8b5

Aliases

arxiv: 1104.1087 · arxiv_version: 1104.1087v3 · doi: 10.48550/arxiv.1104.1087 · pith_short_12: 6AZQLGCDQMCL · pith_short_16: 6AZQLGCDQMCLJR2T · pith_short_8: 6AZQLGCD

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/6AZQLGCDQMCLJR2TF5JPPNMVDW \
  | 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: f0330598438304b4c7532f52f7b5951d943f4c5e00bc4fd9e57bb92f3adef8b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ec8ab6eeba3f00f249808aac5b2fc41833a72d6fe4b977820cf0b39fa7a6caa",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-04-06T13:16:18Z",
    "title_canon_sha256": "e5cd5069ae097b6ced2e1726d1ae9b0a5eb4364b07a3db90174701b15be03342"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1087",
    "kind": "arxiv",
    "version": 3
  }
}