Pith Number

pith:CQAT5XI4

pith:2013:CQAT5XI4FA7AN74CF5LSBU6WI7

not attested not anchored not stored refs pending

Subspace Thresholding Pursuit: A Reconstruction Algorithm for Compressed Sensing

Chao-Bing Song, Shu-Tao Xia, Xin-Ji Liu

arxiv:1311.0121 v2 · 2013-11-01 · 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{CQAT5XI4FA7AN74CF5LSBU6WI7}

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	2026-05-18T02:51:25.250486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14013edd1c283e06ff822f5720d3d647c2071b4422b820595cc709d6877835e5

Aliases

arxiv: 1311.0121 · arxiv_version: 1311.0121v2 · doi: 10.48550/arxiv.1311.0121 · pith_short_12: CQAT5XI4FA7A · pith_short_16: CQAT5XI4FA7AN74C · pith_short_8: CQAT5XI4

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/CQAT5XI4FA7AN74CF5LSBU6WI7 \
  | 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: 14013edd1c283e06ff822f5720d3d647c2071b4422b820595cc709d6877835e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf7204fdea6680b6ceb9c5e44babfb17c81ae7e161b10997fd921b668df92518",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-11-01T09:05:01Z",
    "title_canon_sha256": "0faef99acef46b60017026fd10e91ee5ecd6feed6264e990b49df0c6ec4e3477"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.0121",
    "kind": "arxiv",
    "version": 2
  }
}