Pith Number

pith:VWKEUBJG

pith:2026:VWKEUBJGEQZPWSENO3W5226LOF

not attested not anchored not stored refs pending

Position: Uncertainty Quantification in LLMs is Just Unsupervised Clustering

Hua Wei, Longchao Da, Tiejin Chen, Xiaoou Liu

arxiv:2605.19220 v1 · 2026-05-19 · cs.CL · 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{VWKEUBJGEQZPWSENO3W5226LOF}

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	2026-05-20T01:05:34.236557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad944a05262432fb488d76eddd6bcb716555d2d399d36095642419f6880392b8

Aliases

arxiv: 2605.19220 · arxiv_version: 2605.19220v1 · doi: 10.48550/arxiv.2605.19220 · pith_short_12: VWKEUBJGEQZP · pith_short_16: VWKEUBJGEQZPWSEN · pith_short_8: VWKEUBJG

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/VWKEUBJGEQZPWSENO3W5226LOF \
  | 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: ad944a05262432fb488d76eddd6bcb716555d2d399d36095642419f6880392b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f92e2e6d6d82fbb05cd8987dbb60aa4928d45760c1547100efb905f00b3551d0",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-19T00:47:02Z",
    "title_canon_sha256": "8e1396cbad24fcec4f9e52da78afab146192632f42f7dd33d24d9f630e8b0b01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19220",
    "kind": "arxiv",
    "version": 1
  }
}