Pith Number

pith:EPKPYHXL

pith:2020:EPKPYHXLZ7GPXDVNT2K2HGDLUW

not attested not anchored not stored refs pending

BRPO: Batch Residual Policy Optimization

Craig Boutilier, Ed Chi, Honglak Lee, Jayden Ooi, Ofir Nachum, Sungryull Sohn, Yinlam Chow

arxiv:2002.05522 v2 · 2020-02-08 · 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{EPKPYHXLZ7GPXDVNT2K2HGDLUW}

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	2026-07-05T00:51:06.669532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23d4fc1eebcfccfb8ead9e95a3986ba5b5b398d10b60d44c2586ab61fc0a865e

Aliases

arxiv: 2002.05522 · arxiv_version: 2002.05522v2 · doi: 10.48550/arxiv.2002.05522 · pith_short_12: EPKPYHXLZ7GP · pith_short_16: EPKPYHXLZ7GPXDVN · pith_short_8: EPKPYHXL

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/EPKPYHXLZ7GPXDVNT2K2HGDLUW \
  | 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: 23d4fc1eebcfccfb8ead9e95a3986ba5b5b398d10b60d44c2586ab61fc0a865e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "772bcaa136e7b2dec598199443a782d2731bf767264a843f9ab46d295b8654de",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-02-08T01:59:33Z",
    "title_canon_sha256": "5aca58cc72e7dd0d879a3ebfae89e3dda8bf5817285b81b7eedebb55cde2b339"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.05522",
    "kind": "arxiv",
    "version": 2
  }
}