Pith Number

pith:TQWC4OVS

pith:2019:TQWC4OVS5ALWIBXKLZS5WZRII5

not attested not anchored not stored refs pending

Policy Gradient Search: Online Planning and Expert Iteration without Search Trees

John Schulman, Philipp Moritz, Robert Nishihara, Thomas Anthony, Tim Salimans

arxiv:1904.03646 v1 · 2019-04-07 · 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{TQWC4OVS5ALWIBXKLZS5WZRII5}

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	2026-05-17T23:49:12.648840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c2c2e3ab2e8176406ea5e65db66284759f7e93890d02ad691ade6d7e36965e3

Aliases

arxiv: 1904.03646 · arxiv_version: 1904.03646v1 · doi: 10.48550/arxiv.1904.03646 · pith_short_12: TQWC4OVS5ALW · pith_short_16: TQWC4OVS5ALWIBXK · pith_short_8: TQWC4OVS

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/TQWC4OVS5ALWIBXKLZS5WZRII5 \
  | 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: 9c2c2e3ab2e8176406ea5e65db66284759f7e93890d02ad691ade6d7e36965e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c7ad868a4961c2cc3cb34c593c15a502659fd92d3c2e99c7836809b5c8e113a",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-04-07T13:00:21Z",
    "title_canon_sha256": "e41057f8288c2535868c13049d263d7ac7cc3322ebbeded0a941b63a461daeb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03646",
    "kind": "arxiv",
    "version": 1
  }
}