Pith Number

pith:XLRPO2HJ

pith:2025:XLRPO2HJGLRFHL7FINX4NEQ2HW

not attested not anchored not stored refs pending

Not All Preferences are What You Need for Post-Training: Selective Alignment Strategy for Preference Optimization

Zhijin Dong

arxiv:2507.07725 v1 · 2025-07-10 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XLRPO2HJGLRFHL7FINX4NEQ2HW}

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	2026-07-05T11:35:04.068885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bae2f768e932e253afe5436fc6921a3db38f68f5b5dc4202b4019dd1103463f6

Aliases

arxiv: 2507.07725 · arxiv_version: 2507.07725v1 · doi: 10.48550/arxiv.2507.07725 · pith_short_12: XLRPO2HJGLRF · pith_short_16: XLRPO2HJGLRFHL7F · pith_short_8: XLRPO2HJ

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/XLRPO2HJGLRFHL7FINX4NEQ2HW \
  | 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: bae2f768e932e253afe5436fc6921a3db38f68f5b5dc4202b4019dd1103463f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b239556fe43dee5a61af1de95511530da901619bd6e2b833367ede956f36c23f",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-07-10T12:58:45Z",
    "title_canon_sha256": "b5cf0b32854f046f3557d3d898124f842c4702f62283f93585844d9475e6f91d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.07725",
    "kind": "arxiv",
    "version": 1
  }
}