Pith Number

pith:UBQOGPCS

pith:2026:UBQOGPCSBNJ4HFRNH6ZHJRCV3G

not attested not anchored not stored refs pending

Recovering Diversity Without Losing Alignment: A DPO Recipe for Post-Trained LLMs

Mohit Iyyer, Vinay Samuel, Yapei Chang

arxiv:2605.30021 v1 · 2026-05-28 · 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{UBQOGPCSBNJ4HFRNH6ZHJRCV3G}

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	2026-05-29T02:06:07.338494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a060e33c520b53c3962d3fb274c455d9aae2d0647bfe3d790dc2718b30847dba

Aliases

arxiv: 2605.30021 · arxiv_version: 2605.30021v1 · doi: 10.48550/arxiv.2605.30021 · pith_short_12: UBQOGPCSBNJ4 · pith_short_16: UBQOGPCSBNJ4HFRN · pith_short_8: UBQOGPCS

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/UBQOGPCSBNJ4HFRNH6ZHJRCV3G \
  | 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: a060e33c520b53c3962d3fb274c455d9aae2d0647bfe3d790dc2718b30847dba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fc4574d0e32588d319133b859eb73af4d5945e0faee90ff23c97dcadf856251",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-28T14:42:18Z",
    "title_canon_sha256": "7df04e27c52069bd86cb330aee33482dbedadc58b1b4eb88213a4cb490733620"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.30021",
    "kind": "arxiv",
    "version": 1
  }
}