Pith Number

pith:GRPU6JKT

pith:2013:GRPU6JKTLLVYV6NOLFWYSGUUWC

not attested not anchored not stored refs pending

Recovery of Sparse Signals via Generalized Orthogonal Matching Pursuit: A New Analysis

Byonghyo Shim, Jian Wang, Ping Li, Suhyuk Kwon

arxiv:1304.0941 v3 · 2013-04-03 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GRPU6JKTLLVYV6NOLFWYSGUUWC}

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	2026-05-18T01:50:43.572192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

345f4f25535aeb8af9ae596d891a94b09b0fb3dc243500ef17735ab17454ec35

Aliases

arxiv: 1304.0941 · arxiv_version: 1304.0941v3 · doi: 10.48550/arxiv.1304.0941 · pith_short_12: GRPU6JKTLLVY · pith_short_16: GRPU6JKTLLVYV6NO · pith_short_8: GRPU6JKT

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/GRPU6JKTLLVYV6NOLFWYSGUUWC \
  | 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: 345f4f25535aeb8af9ae596d891a94b09b0fb3dc243500ef17735ab17454ec35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7477ed43871c70ad346e74c78e4ed6c35616429d52f694a972224fd51dffe6e5",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-04-03T12:51:15Z",
    "title_canon_sha256": "887c152f053b81e4ab86be04591d1553b583891931b835aad35290dd46cc864c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0941",
    "kind": "arxiv",
    "version": 3
  }
}