Pith Number

pith:SPXRY7VE

pith:2013:SPXRY7VEVQSPT6SQ5PIE7BPQLS

not attested not anchored not stored refs pending

Spectral Compressed Sensing via Structured Matrix Completion

Yuejie Chi, Yuxin Chen

arxiv:1304.4610 v2 · 2013-04-16 · cs.IT · cs.LG · math.IT · math.NA · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPXRY7VEVQSPT6SQ5PIE7BPQLS}

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	2026-05-18T02:30:08.652235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93ef1c7ea4ac24f9fa50ebd04f85f05c8ef6dac072d500994ded0319c3ec6120

Aliases

arxiv: 1304.4610 · arxiv_version: 1304.4610v2 · doi: 10.48550/arxiv.1304.4610 · pith_short_12: SPXRY7VEVQSP · pith_short_16: SPXRY7VEVQSPT6SQ · pith_short_8: SPXRY7VE

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/SPXRY7VEVQSPT6SQ5PIE7BPQLS \
  | 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: 93ef1c7ea4ac24f9fa50ebd04f85f05c8ef6dac072d500994ded0319c3ec6120

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c16a5346869adae46a8d5361101ebe5c81f57f17c230fd5bb4c29cc4b612b16",
    "cross_cats_sorted": [
      "cs.LG",
      "math.IT",
      "math.NA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-04-16T20:26:15Z",
    "title_canon_sha256": "e3761d59bd29fad69d30aa6d810269baceed7b3ee7129af4a8509710dcc9d1fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.4610",
    "kind": "arxiv",
    "version": 2
  }
}