Pith Number

pith:7XSQ3AOS

pith:2009:7XSQ3AOSC5REFWXMFDSVWYGIA7

not attested not anchored not stored refs pending

On the modified Basis Pursuit reconstruction for Compressed Sensing with partially known support

Stephane Chretien

arxiv:0906.0593 v3 · 2009-06-02 · math.ST · math.OC · stat.ME · 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{7XSQ3AOSC5REFWXMFDSVWYGIA7}

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	2026-05-18T01:33:58.974060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fde50d81d2176242daec28e55b60c807f40fdc8cc40666a253be8873fc94134e

Aliases

arxiv: 0906.0593 · arxiv_version: 0906.0593v3 · doi: 10.48550/arxiv.0906.0593 · pith_short_12: 7XSQ3AOSC5RE · pith_short_16: 7XSQ3AOSC5REFWXM · pith_short_8: 7XSQ3AOS

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/7XSQ3AOSC5REFWXMFDSVWYGIA7 \
  | 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: fde50d81d2176242daec28e55b60c807f40fdc8cc40666a253be8873fc94134e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9222591309feb5bc0a360e71a60518be154fcef142adafa934a4d967e587f9e0",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ME",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2009-06-02T20:20:09Z",
    "title_canon_sha256": "48ac7486d05e5b0a810d29ecd190845039f8669f17e77b9e8d4541376686dddf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.0593",
    "kind": "arxiv",
    "version": 3
  }
}