Pith Number

pith:FD7WCAUM

pith:2020:FD7WCAUMDFATRWT6GGBHRHJQM7

not attested not anchored not stored refs pending

Linear Time-Periodic System Identification with Grouped Atomic Norm Regularization

Andrea Iannelli, Anilkumar Parsi, Mingzhou Yin, Mohammad Khosravi, Roy S. Smith

arxiv:2003.06653 v2 · 2020-03-14 · 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{FD7WCAUMDFATRWT6GGBHRHJQM7}

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	2026-07-05T03:30:06.063269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28ff61028c194138da7e3182789d3067ccd1765ac50d72d71bba1382570167bc

Aliases

arxiv: 2003.06653 · arxiv_version: 2003.06653v2 · doi: 10.48550/arxiv.2003.06653 · pith_short_12: FD7WCAUMDFAT · pith_short_16: FD7WCAUMDFATRWT6 · pith_short_8: FD7WCAUM

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/FD7WCAUMDFATRWT6GGBHRHJQM7 \
  | 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: 28ff61028c194138da7e3182789d3067ccd1765ac50d72d71bba1382570167bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c12b7cfce36bd4b51bcee46d0ac424b29ee9abfb7e90949f2ad541913bf18c4",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2020-03-14T14:57:16Z",
    "title_canon_sha256": "267fed80ec8779a8e11f4459340aa6b0219cba0e8a51daf338ae96420438e70e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.06653",
    "kind": "arxiv",
    "version": 2
  }
}