Pith Number

pith:D4GDQHOE

pith:2026:D4GDQHOEB4HHX75GMJEYGPII5E

not attested not anchored not stored refs pending

When Mean CE Fails: Median CE Can Better Track Language Model Quality

Hao Guo, Kevin Shabahang, Rivaan Patil, Simon Dennis

arxiv:2605.24667 v1 · 2026-05-23 · 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{D4GDQHOEB4HHX75GMJEYGPII5E}

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	2026-05-26T01:03:52.211209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f0c381dc40f0e7bffa66249833d08e9280e6716835a4c86b77c6af8098f6fb5

Aliases

arxiv: 2605.24667 · arxiv_version: 2605.24667v1 · doi: 10.48550/arxiv.2605.24667 · pith_short_12: D4GDQHOEB4HH · pith_short_16: D4GDQHOEB4HHX75G · pith_short_8: D4GDQHOE

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/D4GDQHOEB4HHX75GMJEYGPII5E \
  | 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: 1f0c381dc40f0e7bffa66249833d08e9280e6716835a4c86b77c6af8098f6fb5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91580611236b6338acda16553fc55806761f2460eea60f81e0a170d077da7179",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-23T17:10:20Z",
    "title_canon_sha256": "d8e1af6fbd04c823d9e96f1e6411e9974f47ed792bf9e93954238e5b865c962e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.24667",
    "kind": "arxiv",
    "version": 1
  }
}