Pith Number

pith:TAVALW2E

pith:2022:TAVALW2EMLYLEMNR7XJEWLTBGF

not attested not anchored not stored refs pending

COPA: Certifying Robust Policies for Offline Reinforcement Learning against Poisoning Attacks

Bhavya Kailkhura, Bo Li, Chejian Xu, Ding Zhao, Fan Wu, Huan Zhang, Krishnaram Kenthapadi, Linyi Li

arxiv:2203.08398 v1 · 2022-03-16 · cs.LG · cs.CR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TAVALW2EMLYLEMNR7XJEWLTBGF}

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	2026-07-05T04:05:44.138881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

982a05db4462f0b231b1fdd24b2e61317b042ecedb70db33e3db9e9e3e483d8e

Aliases

arxiv: 2203.08398 · arxiv_version: 2203.08398v1 · doi: 10.48550/arxiv.2203.08398 · pith_short_12: TAVALW2EMLYL · pith_short_16: TAVALW2EMLYLEMNR · pith_short_8: TAVALW2E

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/TAVALW2EMLYLEMNR7XJEWLTBGF \
  | 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: 982a05db4462f0b231b1fdd24b2e61317b042ecedb70db33e3db9e9e3e483d8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "016512f31a1a230db32f49b34ac7169d78944a2c4e3b4311c3e1e1428a422120",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-03-16T05:02:47Z",
    "title_canon_sha256": "81a18d3fb62d7bc32de162dd360d299260a7a9939896dd7b69e4ad4f1e0d9393"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.08398",
    "kind": "arxiv",
    "version": 1
  }
}