Pith Number

pith:XCJL3ZP5

pith:2022:XCJL3ZP5QWO6OY2FOLG5OR4KKF

not attested not anchored not stored refs pending

Infinite-Dimensional Sparse Learning in Linear System Identification

Andrea Iannelli, Mehmet Tolga Akan, Mingzhou Yin, Roy S. Smith

arxiv:2203.14731 v2 · 2022-03-28 · eess.SY · cs.SY · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XCJL3ZP5QWO6OY2FOLG5OR4KKF}

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	2026-07-05T05:52:07.204893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b892bde5fd859de7634572cdd7478a51620007b4526d3225b035dcf89f446ed0

Aliases

arxiv: 2203.14731 · arxiv_version: 2203.14731v2 · doi: 10.48550/arxiv.2203.14731 · pith_short_12: XCJL3ZP5QWO6 · pith_short_16: XCJL3ZP5QWO6OY2F · pith_short_8: XCJL3ZP5

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/XCJL3ZP5QWO6OY2FOLG5OR4KKF \
  | 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: b892bde5fd859de7634572cdd7478a51620007b4526d3225b035dcf89f446ed0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e822f94bea6603f428e0e76773763eb9856509bdbae87bc4419022804f6a9f41",
    "cross_cats_sorted": [
      "cs.SY",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2022-03-28T13:18:48Z",
    "title_canon_sha256": "483e8ede41eb20eb624de7ad21a934f2d1a66f7870e0bd102dcab4591603a163"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.14731",
    "kind": "arxiv",
    "version": 2
  }
}