Pith Number

pith:22RFDDZT

pith:2013:22RFDDZTKF3WIDEFZ5SXYDNOQF

not attested not anchored not stored refs pending

The Importance of Clipping in Neurocontrol by Direct Gradient Descent on the Cost-to-Go Function and in Adaptive Dynamic Programming

Michael Fairbank

arxiv:1302.5565 v1 · 2013-02-22 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{22RFDDZTKF3WIDEFZ5SXYDNOQF}

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	2026-05-18T03:32:46.390958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6a2518f335177640c85cf657c0dae817fe61f6c9042c9d6a6ce66a1b4fb040e

Aliases

arxiv: 1302.5565 · arxiv_version: 1302.5565v1 · doi: 10.48550/arxiv.1302.5565 · pith_short_12: 22RFDDZTKF3W · pith_short_16: 22RFDDZTKF3WIDEF · pith_short_8: 22RFDDZT

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/22RFDDZTKF3WIDEFZ5SXYDNOQF \
  | 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: d6a2518f335177640c85cf657c0dae817fe61f6c9042c9d6a6ce66a1b4fb040e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f7199507e92bc7be31b6677781bbe762a801e98463b8c7746adf5ea50b6efa5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-02-22T12:11:42Z",
    "title_canon_sha256": "c0e28c682d09e2c4b6f065322fba8ffd2a167d1dc25a6d68532335300da44592"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.5565",
    "kind": "arxiv",
    "version": 1
  }
}