Pith Number

pith:565QSKTY

pith:2019:565QSKTY4XGIKLYWDFF5SXVFD7

not attested not anchored not stored refs pending

P3O: Policy-on Policy-off Policy Optimization

Alexander J. Smola, Pratik Chaudhari, Rasool Fakoor

arxiv:1905.01756 v2 · 2019-05-05 · cs.LG · 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{565QSKTY4XGIKLYWDFF5SXVFD7}

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	2026-05-17T23:40:32.157737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efbb092a78e5cc852f16194bd95ea51fd5fb784f0c4a794f3a6ef2bc253d760a

Aliases

arxiv: 1905.01756 · arxiv_version: 1905.01756v2 · doi: 10.48550/arxiv.1905.01756 · pith_short_12: 565QSKTY4XGI · pith_short_16: 565QSKTY4XGIKLYW · pith_short_8: 565QSKTY

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/565QSKTY4XGIKLYWDFF5SXVFD7 \
  | 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: efbb092a78e5cc852f16194bd95ea51fd5fb784f0c4a794f3a6ef2bc253d760a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82ded8f708789958715296b402592172d85d3d73d473bbc2bb256e4e93a6592a",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-05-05T21:51:27Z",
    "title_canon_sha256": "c78c21caba6337587b6dbc5aeb3a6cb367f189bb5781b2e988d66506f4143738"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01756",
    "kind": "arxiv",
    "version": 2
  }
}