Pith Number

pith:KA4F5MIM

pith:2017:KA4F5MIMQXASCF76RF4JSRGFG7

not attested not anchored not stored refs pending

Optimized Structured Sparse Sensing Matrices for Compressive Sensing

Qiuwei Li, Tao Hong, Xiao Li, Zhihui Zhu

arxiv:1709.06895 v3 · 2017-09-19 · eess.SP · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KA4F5MIMQXASCF76RF4JSRGFG7}

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	2026-05-17T23:54:48.690658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50385eb10c85c12117fe89789944c537f284a45bde067ab6711bc300bb00db8f

Aliases

arxiv: 1709.06895 · arxiv_version: 1709.06895v3 · doi: 10.48550/arxiv.1709.06895 · pith_short_12: KA4F5MIMQXAS · pith_short_16: KA4F5MIMQXASCF76 · pith_short_8: KA4F5MIM

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/KA4F5MIMQXASCF76RF4JSRGFG7 \
  | 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: 50385eb10c85c12117fe89789944c537f284a45bde067ab6711bc300bb00db8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aec52f703139afeb96a12a5a20974bfa74b33a8ee0b3e7817b58e298d1c3d13a",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2017-09-19T17:03:33Z",
    "title_canon_sha256": "c312a85e72161d82115db9494aa93d396e484bc9935894432b80a86f2bf5a3f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.06895",
    "kind": "arxiv",
    "version": 3
  }
}