Pith Number

pith:OV4WD5Q7

pith:2025:OV4WD5Q72WNXXCVHTFRR7NKULB

not attested not anchored not stored refs pending

PIPA: Preference Alignment as Prior-Informed Statistical Estimation

Junbo Li, Qiang Liu, Zhangyang Wang

arxiv:2502.05773 v2 · 2025-02-09 · cs.LG · cs.AI · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OV4WD5Q72WNXXCVHTFRR7NKULB}

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	2026-07-05T11:42:53.394774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

757961f61fd59b7b8aa799631fb55458598121ea4917e3679131b5a901cabccb

Aliases

arxiv: 2502.05773 · arxiv_version: 2502.05773v2 · doi: 10.48550/arxiv.2502.05773 · pith_short_12: OV4WD5Q72WNX · pith_short_16: OV4WD5Q72WNXXCVH · pith_short_8: OV4WD5Q7

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/OV4WD5Q72WNXXCVHTFRR7NKULB \
  | 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: 757961f61fd59b7b8aa799631fb55458598121ea4917e3679131b5a901cabccb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c556da69761e63272aa39761412ede9507e8cb2130f87c55f90325d93fc1bd16",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-02-09T04:31:30Z",
    "title_canon_sha256": "4fbbd67d4d986f23e9754a65ee272d3386fe81fb8236817a71c9280279a03d2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.05773",
    "kind": "arxiv",
    "version": 2
  }
}