Pith Number

pith:4RDTNUSN

pith:2023:4RDTNUSNQ3OTMZQWZ5GSMK24ON

not attested not anchored not stored refs pending

On an uncertainty result by Donoho and Stark

Oriol Baeza-Guasch

arxiv:2307.04558 v1 · 2023-07-10 · math.FA · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4RDTNUSNQ3OTMZQWZ5GSMK24ON}

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

On the existence of extremizers for the sum of eigenvalues of Toeplitz operators

Receipt and verification

First computed	2026-07-05T06:29:15.001963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e44736d24d86dd366616cf4d262b5c73541eb795629f9aed2b0c3a9478785a0e

Aliases

arxiv: 2307.04558 · arxiv_version: 2307.04558v1 · doi: 10.48550/arxiv.2307.04558 · pith_short_12: 4RDTNUSNQ3OT · pith_short_16: 4RDTNUSNQ3OTMZQW · pith_short_8: 4RDTNUSN

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/4RDTNUSNQ3OTMZQWZ5GSMK24ON \
  | 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: e44736d24d86dd366616cf4d262b5c73541eb795629f9aed2b0c3a9478785a0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dc21fb2df06367c39fe09d578b8a4f72fa435dce3b434da8fc449aad98f979d",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2023-07-10T13:47:04Z",
    "title_canon_sha256": "6a35dc92254bed6b54e9a279528773609c05c757f5785ff6a3c509a1ab57e259"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.04558",
    "kind": "arxiv",
    "version": 1
  }
}