Pith Number

pith:NGLFOP6N

pith:2026:NGLFOP6NQU4CULTREQ4KXYIJYN

not attested not anchored not stored refs pending

Why Semantic Entropy Fails: Geometry-Aware and Calibrated Uncertainty for Policy Optimization

Han Bao, Kaiwen Shi, Tianyi Ma, Yanfang Ye, Zehong Wang, Zheyuan Zhang

arxiv:2605.21801 v1 · 2026-05-20 · cs.LG · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NGLFOP6NQU4CULTREQ4KXYIJYN}

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	2026-05-22T01:03:33.108838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6996573fcd85382a2e712438abe109c342b571354977b8e2657317aaeb036136

Aliases

arxiv: 2605.21801 · arxiv_version: 2605.21801v1 · doi: 10.48550/arxiv.2605.21801 · pith_short_12: NGLFOP6NQU4C · pith_short_16: NGLFOP6NQU4CULTR · pith_short_8: NGLFOP6N

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/NGLFOP6NQU4CULTREQ4KXYIJYN \
  | 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: 6996573fcd85382a2e712438abe109c342b571354977b8e2657317aaeb036136

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5dc550f8b682bbe3c305364f9929985dd2f06f7bfb3fa9c793901bc1b2a364e2",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-20T22:59:02Z",
    "title_canon_sha256": "06ea4005ef8e27828a8e33159f9539eb0a99a19ea1a781cc2202015cf4f9e029"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21801",
    "kind": "arxiv",
    "version": 1
  }
}