Pith Number

pith:23LEEJJQ

pith:2018:23LEEJJQY7NSWTJPZPIBGNAIHA

not attested not anchored not stored refs pending

A Fast Interior Point Method for Atomic Norm Soft Thresholding

Thomas Lundgaard Hansen, Tobias Lindstr{\o}m Jensen

arxiv:1803.00862 v2 · 2018-03-02 · math.NA · cs.NA · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{23LEEJJQY7NSWTJPZPIBGNAIHA}

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	2026-05-17T23:42:49.033374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6d6422530c7db2b4d2fcbd013340838309415b43096f40588d399cff10d20f8

Aliases

arxiv: 1803.00862 · arxiv_version: 1803.00862v2 · doi: 10.48550/arxiv.1803.00862 · pith_short_12: 23LEEJJQY7NS · pith_short_16: 23LEEJJQY7NSWTJP · pith_short_8: 23LEEJJQ

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/23LEEJJQY7NSWTJPZPIBGNAIHA \
  | 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: d6d6422530c7db2b4d2fcbd013340838309415b43096f40588d399cff10d20f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15435ee20acb7b40f832c2b06af9bbb5e430138248e28fcb990086e6ccecbfa4",
    "cross_cats_sorted": [
      "cs.NA",
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-03-02T14:24:51Z",
    "title_canon_sha256": "639b860eccfc97baba7a5373227012de2aaf9b7175bedee670e214ecf148b835"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00862",
    "kind": "arxiv",
    "version": 2
  }
}