Pith Number

pith:J7ZBZJNL

pith:2018:J7ZBZJNLC3UNEZEHFEEB4AFH7I

not attested not anchored not stored refs pending

Spectral Filtering for General Linear Dynamical Systems

Cyril Zhang, Elad Hazan, Holden Lee, Karan Singh, Yi Zhang

arxiv:1802.03981 v1 · 2018-02-12 · cs.LG · 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{J7ZBZJNLC3UNEZEHFEEB4AFH7I}

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	2026-05-18T00:23:49.800728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ff21ca5ab16e8d2648729081e00a7fa2b77031e8847e4231b950251cb52e72c

Aliases

arxiv: 1802.03981 · arxiv_version: 1802.03981v1 · doi: 10.48550/arxiv.1802.03981 · pith_short_12: J7ZBZJNLC3UN · pith_short_16: J7ZBZJNLC3UNEZEH · pith_short_8: J7ZBZJNL

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/J7ZBZJNLC3UNEZEHFEEB4AFH7I \
  | 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: 4ff21ca5ab16e8d2648729081e00a7fa2b77031e8847e4231b950251cb52e72c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6235963330a2e815c0fb1697f3618193779c229f3910328a80f25fa6d0583730",
    "cross_cats_sorted": [
      "cs.SY",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-02-12T11:20:30Z",
    "title_canon_sha256": "3d3572052853ea0c736484d23f41b232898bfea2607c54e9f0581083db4b251b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.03981",
    "kind": "arxiv",
    "version": 1
  }
}