Pith Number

pith:TVRWIH2K

pith:2011:TVRWIH2KYN3ZQCBYHC66DUFZLV

not attested not anchored not stored refs pending

Weighted algorithms for compressed sensing and matrix completion

Guillaume Lecu\'e, St\'ephane Ga\"iffas

arxiv:1107.1638 v1 · 2011-07-08 · cs.IT · math.IT · math.ST · 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{TVRWIH2KYN3ZQCBYHC66DUFZLV}

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	2026-05-18T04:18:35.297607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d63641f4ac37798083838bde1d0b95d5e84bc76cf60acf00db096e7d5f7bb35

Aliases

arxiv: 1107.1638 · arxiv_version: 1107.1638v1 · doi: 10.48550/arxiv.1107.1638 · pith_short_12: TVRWIH2KYN3Z · pith_short_16: TVRWIH2KYN3ZQCBY · pith_short_8: TVRWIH2K

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/TVRWIH2KYN3ZQCBYHC66DUFZLV \
  | 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: 9d63641f4ac37798083838bde1d0b95d5e84bc76cf60acf00db096e7d5f7bb35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8799158f26934fa09ad70870f30a4fa70cfa539cff25dfba49e19d473023f901",
    "cross_cats_sorted": [
      "math.IT",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-07-08T14:10:49Z",
    "title_canon_sha256": "7be455b4f45050066087a1b0da7e9abe200eec49c3f23f5541ce8fef3dc302e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.1638",
    "kind": "arxiv",
    "version": 1
  }
}