Pith Number

pith:UHEBMECI

pith:2018:UHEBMECIOD4DDGCXBMPGOCBT2D

not attested not anchored not stored refs pending

Policy Optimization via Importance Sampling

Alberto Maria Metelli, Francesco Faccio, Marcello Restelli, Matteo Papini

arxiv:1809.06098 v2 · 2018-09-17 · cs.LG · cs.AI · 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{UHEBMECIOD4DDGCXBMPGOCBT2D}

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	2026-05-18T00:01:52.866117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1c816104870f83198570b1e670833d0e1d1e1ad8da068a4e7f624b9228ef6f0

Aliases

arxiv: 1809.06098 · arxiv_version: 1809.06098v2 · doi: 10.48550/arxiv.1809.06098 · pith_short_12: UHEBMECIOD4D · pith_short_16: UHEBMECIOD4DDGCX · pith_short_8: UHEBMECI

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/UHEBMECIOD4DDGCXBMPGOCBT2D \
  | 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: a1c816104870f83198570b1e670833d0e1d1e1ad8da068a4e7f624b9228ef6f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e905c782a22f814fd22805b65158764dcde2d1087b74f60860353cb1c488b66",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-09-17T09:42:26Z",
    "title_canon_sha256": "89cfa10c264c32c82f3087e48082381cce7c5879d2727ec9625767494ad4fbcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.06098",
    "kind": "arxiv",
    "version": 2
  }
}