Pith Number

pith:WYF4VB3M

pith:2019:WYF4VB3MPF7BWKOWBIDKGH5RPZ

not attested not anchored not stored refs pending

V-MPO: On-Policy Maximum a Posteriori Policy Optimization for Discrete and Continuous Control

Abbas Abdolmaleki, Aidan Clark, Arun Ahuja, Dan Belov, Dhruva Tirumala, H. Francis Song, Hubert Soyer, Jack W. Rae, Jost Tobias Springenberg, Martin Riedmiller, Matthew M. Botvinick, Nicolas Heess, Seb Noury, Siqi Liu

arxiv:1909.12238 v1 · 2019-09-26 · cs.AI · 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{WYF4VB3MPF7BWKOWBIDKGH5RPZ}

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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

5 papers in Pith

Ratio-Variance Regularized Policy Optimization

Listwise Policy Optimization: Group-based RLVR as Target-Projection on the LLM Response Simplex

Promptbreeder: Self-Referential Self-Improvement Via Prompt Evolution

Improving alignment of dialogue agents via targeted human judgements

Listwise Policy Optimization: Group-based RLVR as Target-Projection on the LLM Response Simplex

Receipt and verification

First computed	2026-07-05T00:07:32.261570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b60bca876c797e1b29d60a06a31fb17e7a988b6a85248204ec024b84873eea80

Aliases

arxiv: 1909.12238 · arxiv_version: 1909.12238v1 · doi: 10.48550/arxiv.1909.12238 · pith_short_12: WYF4VB3MPF7B · pith_short_16: WYF4VB3MPF7BWKOW · pith_short_8: WYF4VB3M

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/WYF4VB3MPF7BWKOWBIDKGH5RPZ \
  | 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: b60bca876c797e1b29d60a06a31fb17e7a988b6a85248204ec024b84873eea80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd35b505c322e8052a95e137f0f98705dfc156736e4f1ab3e98a2a987044e1da",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2019-09-26T16:34:22Z",
    "title_canon_sha256": "96d3437d089f1d08f592e44f0881b3be56bb73624d1b78feedd5289db17b4ed3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.12238",
    "kind": "arxiv",
    "version": 1
  }
}