Pith Number

pith:POXXJHGI

pith:2026:POXXJHGIESYU3ODWKMTEQIS4SA

not attested not anchored not stored refs pending

PrefReward: Learning User Preference Matrix for Personalized Text Generation

Chengbing Wang, Fuli Feng, Xiaoyan Zhao, Yang Zhang, Yimeng Bai, Yue Wu

arxiv:2607.21067 v1 · 2026-07-23 · 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{POXXJHGIESYU3ODWKMTEQIS4SA}

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	2026-07-24T01:23:50.108532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7baf749cc824b14db876532648225c9000041bd5379a3cb0019d559f13698637

Aliases

arxiv: 2607.21067 · arxiv_version: 2607.21067v1 · doi: 10.48550/arxiv.2607.21067 · pith_short_12: POXXJHGIESYU · pith_short_16: POXXJHGIESYU3ODW · pith_short_8: POXXJHGI

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/POXXJHGIESYU3ODWKMTEQIS4SA \
  | 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: 7baf749cc824b14db876532648225c9000041bd5379a3cb0019d559f13698637

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d3774e3800961310ed6041cf3b44ad61d9d9cb9d6d03b1bf52439316245e0b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-07-23T09:00:20Z",
    "title_canon_sha256": "30b2a00965806fb633e153e011a37cb05e24cc419e4c479d1951b5f47eec8b0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21067",
    "kind": "arxiv",
    "version": 1
  }
}