Pith Number

pith:XB3DI7CZ

pith:2011:XB3DI7CZYHC5JTJG25FAMKEDKG

not attested not anchored not stored refs pending

Blind Compressed Sensing Over a Structured Union of Subspaces

Guillermo Sapiro, Jorge Silva, Lawrence Carin, Minhua Chen, Yonina C. Eldar

arxiv:1103.2469 v1 · 2011-03-12 · 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{XB3DI7CZYHC5JTJG25FAMKEDKG}

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	2026-05-18T02:22:19.710684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b876347c59c1c5d4cd26d74a06288351a963d2be242422258fe1cd32579e4568

Aliases

arxiv: 1103.2469 · arxiv_version: 1103.2469v1 · doi: 10.48550/arxiv.1103.2469 · pith_short_12: XB3DI7CZYHC5 · pith_short_16: XB3DI7CZYHC5JTJG · pith_short_8: XB3DI7CZ

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/XB3DI7CZYHC5JTJG25FAMKEDKG \
  | 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: b876347c59c1c5d4cd26d74a06288351a963d2be242422258fe1cd32579e4568

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf528a23955bb957227c2e66fdfe88cd5725e4205dcdfc6ba3942d01d4da5d08",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-03-12T18:15:58Z",
    "title_canon_sha256": "0256ae9c9847ab80f2ad31f1b8ed584670b467be6a2dc5b3df081f5589f7e03a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2469",
    "kind": "arxiv",
    "version": 1
  }
}