Pith Number

pith:6HST3YX2

pith:2020:6HST3YX2NAOAEHRX6FVQIVBA5A

not attested not anchored not stored refs pending

An Efficient Algorithm to Compute Norms for Finite Horizon, Linear Time-Varying Systems

Jyot Buch, Murat Arcak, Peter Seiler

arxiv:2008.13779 v3 · 2020-08-31 · eess.SY · 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{6HST3YX2NAOAEHRX6FVQIVBA5A}

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	2026-07-05T01:48:12.282400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1e53de2fa681c021e37f16b045420e83f5705c7c14a19f8eeddf076fcf06eb9

Aliases

arxiv: 2008.13779 · arxiv_version: 2008.13779v3 · doi: 10.48550/arxiv.2008.13779 · pith_short_12: 6HST3YX2NAOA · pith_short_16: 6HST3YX2NAOAEHRX · pith_short_8: 6HST3YX2

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/6HST3YX2NAOAEHRX6FVQIVBA5A \
  | 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: f1e53de2fa681c021e37f16b045420e83f5705c7c14a19f8eeddf076fcf06eb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bb45fa19b02adb1f83b90c23e69061596b3162bc28b3bf0185ead08b26ffeef",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2020-08-31T17:58:24Z",
    "title_canon_sha256": "8cce744e80c2a94ff3e4a9b41bf4f8d2ed0112a3e01c9016eb9c404458a5b206"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.13779",
    "kind": "arxiv",
    "version": 3
  }
}