Pith Number

pith:HGD53ZXO

pith:2025:HGD53ZXOMBPR6WB25QYHPAVXNL

not attested not anchored not stored refs pending

Interpretable Gradient Descent for Kalman Gain

A. Olshevsky, M.A. Belabbas

arxiv:2507.14354 v2 · 2025-07-18 · math.OC · cs.SY · eess.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{HGD53ZXOMBPR6WB25QYHPAVXNL}

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.

Cited by

1 paper in Pith

Learning Kalman Policy for Singular Unknown Covariances via Riemannian Regularization

Receipt and verification

First computed	2026-07-05T11:41:26.879515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3987dde6ee605f1f583aec307782b76ae83803a7d3899d77d364649a86e932ed

Aliases

arxiv: 2507.14354 · arxiv_version: 2507.14354v2 · doi: 10.48550/arxiv.2507.14354 · pith_short_12: HGD53ZXOMBPR · pith_short_16: HGD53ZXOMBPR6WB2 · pith_short_8: HGD53ZXO

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/HGD53ZXOMBPR6WB25QYHPAVXNL \
  | 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: 3987dde6ee605f1f583aec307782b76ae83803a7d3899d77d364649a86e932ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b96a73c2e9f7d2879c538e83e0f1d7af726ddb3c97b9fc61f9336723ff758b6d",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-07-18T20:20:06Z",
    "title_canon_sha256": "7cab4b0e04aed5c065f18c6e21897132370b03134c5fa4ff699bd1a872bcfee8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.14354",
    "kind": "arxiv",
    "version": 2
  }
}