Pith Number

pith:3UDUMXRQ

pith:2011:3UDUMXRQYHVGRRIFWV3DF45O33

not attested not anchored not stored refs pending

Joint k-step analysis of Orthogonal Matching Pursuit and Orthogonal Least Squares

C\'edric Herzet, Charles Soussen, J\'er\^ome Idier, R\'emi Gribonval

arxiv:1111.0522 v2 · 2011-11-02 · stat.CO · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3UDUMXRQYHVGRRIFWV3DF45O33}

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	2026-05-18T03:27:21.476113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd07465e30c1ea68c505b57632f3aedecbec5a7ed11db3a28b12303e7a337c3a

Aliases

arxiv: 1111.0522 · arxiv_version: 1111.0522v2 · doi: 10.48550/arxiv.1111.0522 · pith_short_12: 3UDUMXRQYHVG · pith_short_16: 3UDUMXRQYHVGRRIF · pith_short_8: 3UDUMXRQ

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/3UDUMXRQYHVGRRIFWV3DF45O33 \
  | 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: dd07465e30c1ea68c505b57632f3aedecbec5a7ed11db3a28b12303e7a337c3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4efadd06089aa1fbe56c46f231d5ea222c9768a127f52a57c933574a47fa45ec",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2011-11-02T15:02:11Z",
    "title_canon_sha256": "aea24c39e0d3b578c7b31b29060fb34c67113b8fd831b7f9ee8940d7022bb070"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.0522",
    "kind": "arxiv",
    "version": 2
  }
}