Pith Number

pith:RQKW4BDI

pith:2013:RQKW4BDIGQBHQSRVLDYLWP23A3

not attested not anchored not stored refs pending

Adaptive matching pursuit for off-grid compressed sensing

Huadong Meng, Tianyao Huang, Xiqin Wang, Yimin Liu

arxiv:1308.4273 v2 · 2013-08-20 · eess.SP · 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{RQKW4BDIGQBHQSRVLDYLWP23A3}

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	2026-05-18T00:06:56.842649Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c156e04683402784a3558f0bb3f5b06e35225fd7108b95f46cf5f57a0b9660c

Aliases

arxiv: 1308.4273 · arxiv_version: 1308.4273v2 · doi: 10.48550/arxiv.1308.4273 · pith_short_12: RQKW4BDIGQBH · pith_short_16: RQKW4BDIGQBHQSRV · pith_short_8: RQKW4BDI

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/RQKW4BDIGQBHQSRVLDYLWP23A3 \
  | 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: 8c156e04683402784a3558f0bb3f5b06e35225fd7108b95f46cf5f57a0b9660c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1cd8f70542e210ec48ddbec7708f5a56141f1da88518a0fee681fe27bbf1825",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2013-08-20T09:54:27Z",
    "title_canon_sha256": "192bf8b53d7186d1bdfba510bab75cc416fe4685b347ce114eab8a08d8da4299"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4273",
    "kind": "arxiv",
    "version": 2
  }
}