Pith Number

pith:FNVHE36A

pith:2025:FNVHE36AXJ3B2U5YPWFEUIOGWV

not attested not anchored not stored refs pending

Efficient Spectral Control of Partially Observed Linear Dynamical Systems

Anand Brahmbhatt, Elad Hazan, Gon Buzaglo, Sofiia Druchyna

arxiv:2505.20943 v1 · 2025-05-27 · cs.LG · cs.SY · eess.SY · math.OC · 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{FNVHE36AXJ3B2U5YPWFEUIOGWV}

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	2026-07-05T11:10:21.410537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b6a726fc0ba761d53b87d8a4a21c6b55800cc97c03fc9d7c07977eb011327db

Aliases

arxiv: 2505.20943 · arxiv_version: 2505.20943v1 · doi: 10.48550/arxiv.2505.20943 · pith_short_12: FNVHE36AXJ3B · pith_short_16: FNVHE36AXJ3B2U5Y · pith_short_8: FNVHE36A

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/FNVHE36AXJ3B2U5YPWFEUIOGWV \
  | 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: 2b6a726fc0ba761d53b87d8a4a21c6b55800cc97c03fc9d7c07977eb011327db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4cd0640dedb3714154c674b31d7cfff0272dbb8ee7a570a11cec7f0cd1709c9e",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY",
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-05-27T09:28:10Z",
    "title_canon_sha256": "3cfcb0073d0053255f4f91dc6090321c343feef0cc6630c465042c9b5e7f0531"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.20943",
    "kind": "arxiv",
    "version": 1
  }
}