Pith Number

pith:J4NNI2KP

pith:2017:J4NNI2KPMPMNLYEQL6HCXO547N

not attested not anchored not stored refs pending

On the Approximation of Toeplitz Operators for Nonparametric $\mathcal{H}_\infty$-norm Estimation

Benjamin Recht, Ross Boczar, Stephen Tu

arxiv:1709.10203 v1 · 2017-09-29 · math.OC · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J4NNI2KPMPMNLYEQL6HCXO547N}

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	2026-05-18T00:34:03.995643Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f1ad4694f63d8d5e0905f8e2bbbbcfb43a66fe25a3437902e838c6ffba740f8

Aliases

arxiv: 1709.10203 · arxiv_version: 1709.10203v1 · doi: 10.48550/arxiv.1709.10203 · pith_short_12: J4NNI2KPMPMN · pith_short_16: J4NNI2KPMPMNLYEQ · pith_short_8: J4NNI2KP

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/J4NNI2KPMPMNLYEQL6HCXO547N \
  | 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: 4f1ad4694f63d8d5e0905f8e2bbbbcfb43a66fe25a3437902e838c6ffba740f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca1f913add153d70d07ef2ffe344e49534673235950f8f46c738560d2d29a01e",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-09-29T00:27:06Z",
    "title_canon_sha256": "12391a7a8ff24939f9cdde0867ff824f64aff91a834ec64ac931c55e267a7dc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.10203",
    "kind": "arxiv",
    "version": 1
  }
}