Pith Number

pith:X2GKQJ2R

pith:2010:X2GKQJ2ROR76QQGHIX22ZESFUB

not attested not anchored not stored refs pending

A* Orthogonal Matching Pursuit: Best-First Search for Compressed Sensing Signal Recovery

Hakan Erdogan, Nazim Burak Karahanoglu

arxiv:1009.0396 v3 · 2010-09-02 · 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{X2GKQJ2ROR76QQGHIX22ZESFUB}

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	2026-05-18T03:46:17.068833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be8ca82751747fe840c745f5ac9245a06665e108391a2cf8a7b03bec6c556bde

Aliases

arxiv: 1009.0396 · arxiv_version: 1009.0396v3 · doi: 10.48550/arxiv.1009.0396 · pith_short_12: X2GKQJ2ROR76 · pith_short_16: X2GKQJ2ROR76QQGH · pith_short_8: X2GKQJ2R

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/X2GKQJ2ROR76QQGHIX22ZESFUB \
  | 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: be8ca82751747fe840c745f5ac9245a06665e108391a2cf8a7b03bec6c556bde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc229e8769ccac3e4a7a09097acfe603578981122e4aa2ab52f1198c5bfacb24",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-09-02T11:41:21Z",
    "title_canon_sha256": "95b80b70ed32daf8bcceec2afa6ceb52613a4a4880d1630ba69eda6e228e71d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.0396",
    "kind": "arxiv",
    "version": 3
  }
}