Pith Number

pith:URF73XYS

pith:2012:URF73XYS3GF6SOYEEOLO6R472E

not attested not anchored not stored refs pending

Retrieval of Sparse Solutions of Multiple-Measurement Vectors via Zero-point Attracting Projection

Hui Dai, Laming Chen, Wei Feng, Yang You, Yuantao Gu

arxiv:1203.1548 v2 · 2012-03-07 · 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{URF73XYS3GF6SOYEEOLO6R472E}

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	2026-05-18T02:21:17.215307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a44bfddf12d98be93b042396ef479fd1089a1dd8303da5bed771ee6f80b0448b

Aliases

arxiv: 1203.1548 · arxiv_version: 1203.1548v2 · doi: 10.48550/arxiv.1203.1548 · pith_short_12: URF73XYS3GF6 · pith_short_16: URF73XYS3GF6SOYE · pith_short_8: URF73XYS

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/URF73XYS3GF6SOYEEOLO6R472E \
  | 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: a44bfddf12d98be93b042396ef479fd1089a1dd8303da5bed771ee6f80b0448b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e29d41b827d089bc52a640824c463c5179f9bc0d0781cc00db34fdaa5dcda84",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-03-07T17:31:27Z",
    "title_canon_sha256": "13b8b2a14cb99921f21aad2920884b5723d707431415b2e6c421e3c29f798762"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1548",
    "kind": "arxiv",
    "version": 2
  }
}