Pith Number

pith:A7BU6CFW

pith:2014:A7BU6CFW5CCDGHRZ4TXBIOUXU2

not attested not anchored not stored refs pending

Sparse Approximation, List Decoding, and Uncertainty Principles

Anna C. Gilbert, Atri Rudra, Hung Q. Ngo, Mahmoud Abo Khamis

arxiv:1404.5190 v2 · 2014-04-18 · 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{A7BU6CFW5CCDGHRZ4TXBIOUXU2}

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	2026-05-18T02:45:31.407482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07c34f08b6e884331e39e4ee143a97a6bbd9868d8aac65b98f792d34fe37ee65

Aliases

arxiv: 1404.5190 · arxiv_version: 1404.5190v2 · doi: 10.48550/arxiv.1404.5190 · pith_short_12: A7BU6CFW5CCD · pith_short_16: A7BU6CFW5CCDGHRZ · pith_short_8: A7BU6CFW

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/A7BU6CFW5CCDGHRZ4TXBIOUXU2 \
  | 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: 07c34f08b6e884331e39e4ee143a97a6bbd9868d8aac65b98f792d34fe37ee65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56380fdd95094f6e33e4c6377a2856ed9a3748e5d41c5c5f2dc85b1f25044923",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-04-18T18:31:21Z",
    "title_canon_sha256": "a888b72fc3d159d782b47513f2edb6538eb37992d0f3b7270560b6cf17bbe319"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.5190",
    "kind": "arxiv",
    "version": 2
  }
}