Pith Number

pith:TQULTOUY

pith:2013:TQULTOUY7ZGY5WH5YEZC7VGR4U

not attested not anchored not stored refs pending

Joint Sparsity Recovery for Spectral Compressed Sensing

Yuejie Chi

arxiv:1311.2229 v2 · 2013-11-09 · 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{TQULTOUY7ZGY5WH5YEZC7VGR4U}

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	2026-05-18T03:00:25.531381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c28b9ba98fe4d8ed8fdc1322fd4d1e5235447f3aaa83410bae928a35ecaa8cf

Aliases

arxiv: 1311.2229 · arxiv_version: 1311.2229v2 · doi: 10.48550/arxiv.1311.2229 · pith_short_12: TQULTOUY7ZGY · pith_short_16: TQULTOUY7ZGY5WH5 · pith_short_8: TQULTOUY

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/TQULTOUY7ZGY5WH5YEZC7VGR4U \
  | 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: 9c28b9ba98fe4d8ed8fdc1322fd4d1e5235447f3aaa83410bae928a35ecaa8cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0168c76daaad3d4c7e9b831ca12c594d221309d64b50417da1697e423819126",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-11-09T22:57:22Z",
    "title_canon_sha256": "1c7ffdf05c9d26aed23822d703bcff03cba81fac363c0a608ed84bd5491dc08a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2229",
    "kind": "arxiv",
    "version": 2
  }
}