Pith Number

pith:H4BFERBZ

pith:2021:H4BFERBZPYYIDZDCNJMVVA4M34

not attested not anchored not stored refs pending

Policy-based optimization: single-step policy gradient method seen as an evolution strategy

Alexander Kuhnle, Elie Hachem, Jonathan Viquerat, Philippe Meliga, R\'egis Duvigneau

arxiv:2104.06175 v3 · 2021-04-13 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H4BFERBZPYYIDZDCNJMVVA4M34}

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	2026-07-05T03:35:09.348328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f025244397e3081e4626a595a838cdf3072e30f1fdf9619e9b95c4e28396638

Aliases

arxiv: 2104.06175 · arxiv_version: 2104.06175v3 · doi: 10.48550/arxiv.2104.06175 · pith_short_12: H4BFERBZPYYI · pith_short_16: H4BFERBZPYYIDZDC · pith_short_8: H4BFERBZ

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/H4BFERBZPYYIDZDCNJMVVA4M34 \
  | 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: 3f025244397e3081e4626a595a838cdf3072e30f1fdf9619e9b95c4e28396638

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce399a00266270ca0dd68b5a38dd3a69bf3eb09a13c01f637ffb7c2c5dfec132",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2021-04-13T13:27:33Z",
    "title_canon_sha256": "f931d5f2e13941d5dc4ed4f7df6014f8f305b0f60be039c180325dac57b36b53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.06175",
    "kind": "arxiv",
    "version": 3
  }
}