Pith Number

pith:7E24A5A4

pith:2019:7E24A5A4MKZT3U2ZYV2SEFA43C

not attested not anchored not stored refs pending

A Subspace Framework for ${\mathcal H}_\infty$-Norm Minimization

Emre Mengi, Matthias Voigt, Nicat Aliyev, Peter Benner

arxiv:1905.04208 v1 · 2019-05-10 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7E24A5A4MKZT3U2ZYV2SEFA43C}

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	2026-05-17T23:46:31.741071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f935c0741c62b33dd359c57522141cd894971cdc5d311cfec5071f79f2cf10be

Aliases

arxiv: 1905.04208 · arxiv_version: 1905.04208v1 · doi: 10.48550/arxiv.1905.04208 · pith_short_12: 7E24A5A4MKZT · pith_short_16: 7E24A5A4MKZT3U2Z · pith_short_8: 7E24A5A4

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/7E24A5A4MKZT3U2ZYV2SEFA43C \
  | 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: f935c0741c62b33dd359c57522141cd894971cdc5d311cfec5071f79f2cf10be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d991623995c3af178197263cf6c0be0ade40193fdad6bb1505bdbb5381e6f29",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-05-10T15:11:04Z",
    "title_canon_sha256": "d43db3c6e53a2b557288e93cb1d4e646b14ed7f7f64ae25b0f92f5d7367cf488"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.04208",
    "kind": "arxiv",
    "version": 1
  }
}