Pith Number

pith:FPSQBYBF

pith:2017:FPSQBYBFZZFSD42WFGRUFFTOEO

not attested not anchored not stored refs pending

On a frame theoretic measure of quality of LTI systems

Debasish Chatterjee, Mohammed Rayyan Sheriff

arxiv:1703.07539 v1 · 2017-03-22 · 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{FPSQBYBFZZFSD42WFGRUFFTOEO}

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	2026-05-18T00:13:48.131381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2be500e025ce4b21f35629a342966e238ace68bba228e5bfad0eb581767c8694

Aliases

arxiv: 1703.07539 · arxiv_version: 1703.07539v1 · doi: 10.48550/arxiv.1703.07539 · pith_short_12: FPSQBYBFZZFS · pith_short_16: FPSQBYBFZZFSD42W · pith_short_8: FPSQBYBF

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/FPSQBYBFZZFSD42WFGRUFFTOEO \
  | 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: 2be500e025ce4b21f35629a342966e238ace68bba228e5bfad0eb581767c8694

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ee40464c63b3f7d1e424e0ed41a455114700a00d476379cdc7a5f3f4259c752",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-03-22T06:26:37Z",
    "title_canon_sha256": "4bc23de1cf6992350d5c93cb30d1566c572d59b8c7142f47696d81b0f4216b06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.07539",
    "kind": "arxiv",
    "version": 1
  }
}