Pith Number

pith:TZFUXWXW

pith:2019:TZFUXWXWBRZTNY6BQLCDBFY4RH

not attested not anchored not stored refs pending

Improved Lower Bounds for the Restricted Isometry Property of Subsampled Fourier Matrices

Shravas Rao

arxiv:1903.12146 v1 · 2019-03-28 · cs.IT · cs.DS · math.IT · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TZFUXWXWBRZTNY6BQLCDBFY4RH}

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.

Cited by

1 paper in Pith

Sparse Recovery for Orthogonal Polynomial Transforms

Receipt and verification

First computed	2026-05-17T23:49:57.919529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e4b4bdaf60c7336e3c182c430971c89e186ce38c4336842c5700984ed61da96

Aliases

arxiv: 1903.12146 · arxiv_version: 1903.12146v1 · doi: 10.48550/arxiv.1903.12146 · pith_short_12: TZFUXWXWBRZT · pith_short_16: TZFUXWXWBRZTNY6B · pith_short_8: TZFUXWXW

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/TZFUXWXWBRZTNY6BQLCDBFY4RH \
  | 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: 9e4b4bdaf60c7336e3c182c430971c89e186ce38c4336842c5700984ed61da96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03d2ba6e6778a27d632e8e7d89edcd024ddb99737fd560a2286980ac9fe005bc",
    "cross_cats_sorted": [
      "cs.DS",
      "math.IT",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-03-28T17:34:10Z",
    "title_canon_sha256": "499811dc72be60b9a116a6d4a0ed6864a4fe1256a4b0d45a0a1210c2081d0ffc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.12146",
    "kind": "arxiv",
    "version": 1
  }
}