Pith Number

pith:UNOKB3IW

pith:2026:UNOKB3IWV62HM7DNSOAP6YLO5C

not attested not anchored not stored refs pending

UCPO: Uncertainty-Aware Policy Optimization

Chunmei Xie, Gongrui Nan, Jing Huang, Junhao Zhang, Mengyu Lu, Qiang Zhu, Qixuan Zhou, Siye Chen, Weiqi Xiong, Xianzhou Zeng, Xingzhong Xu, Yadong Li

arxiv:2601.22648 v2 · 2026-01-30 · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UNOKB3IWV62HM7DNSOAP6YLO5C}

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	2026-05-27T01:05:43.554505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a35ca0ed16afb4767c6d9380ff616ee894a4d47a41165459bed2de39c1bab80e

Aliases

arxiv: 2601.22648 · arxiv_version: 2601.22648v2 · doi: 10.48550/arxiv.2601.22648 · pith_short_12: UNOKB3IWV62H · pith_short_16: UNOKB3IWV62HM7DN · pith_short_8: UNOKB3IW

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/UNOKB3IWV62HM7DNSOAP6YLO5C \
  | 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: a35ca0ed16afb4767c6d9380ff616ee894a4d47a41165459bed2de39c1bab80e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6ec9117683ef94ed146cce1581c5aa1434b9e824554ba09bebf70af16dcf120",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-01-30T07:07:42Z",
    "title_canon_sha256": "77eb184a66c1b46097abcf05c579cfb92144a881622ec9cd61a1d0dda6ee4ee7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.22648",
    "kind": "arxiv",
    "version": 2
  }
}