Pith Number

pith:IGSFXDXG

pith:2007:IGSFXDXGBCWJEZ6GVYWGH6IVTM

not attested not anchored not stored refs pending

Subspace correction methods for total variation and $\ell_1-$minimization

Carola-Bibiane Sch\"onlieb, Massimo Fornasier

arxiv:0712.2258 v1 · 2007-12-13 · math.NA · cs.NA · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IGSFXDXGBCWJEZ6GVYWGH6IVTM}

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	2026-06-03T22:06:03.570634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41a45b8ee608ac9267c6ae2c63f9159b3827e3cff9bc7080d50755060847eba2

Aliases

arxiv: 0712.2258 · arxiv_version: 0712.2258v1 · doi: 10.48550/arxiv.0712.2258 · pith_short_12: IGSFXDXGBCWJ · pith_short_16: IGSFXDXGBCWJEZ6G · pith_short_8: IGSFXDXG

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/IGSFXDXGBCWJEZ6GVYWGH6IVTM \
  | 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: 41a45b8ee608ac9267c6ae2c63f9159b3827e3cff9bc7080d50755060847eba2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d765a294e79ee9348fcc5e86256a9e2a74c875cb9d18395607ab5f12380bd73b",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AP"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2007-12-13T23:12:33Z",
    "title_canon_sha256": "9e3abc4eefca54907b46f91e5d5340ea9d75843c78a9865508c8e38169339b72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.2258",
    "kind": "arxiv",
    "version": 1
  }
}