Pith Number

pith:WPPVX4YI

pith:2026:WPPVX4YI7CE6SHPVPH7B2PMEA7

not attested not anchored not stored refs pending

ActiveUltraFeedback: Efficient Preference Data Generation using Active Learning

Andreas Krause, Barna P\'asztor, Davit Melikidze, Ido Hakimi, Jessica Lam, Marian Schneider, Martin Wertich

arxiv:2603.09692 v2 · 2026-03-10 · cs.LG · cs.AI · 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{WPPVX4YI7CE6SHPVPH7B2PMEA7}

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	2026-06-02T02:04:52.216220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3df5bf308f889e91df579fe1d3d8407fa18f406d74bb316ecc22ad854e1aa87

Aliases

arxiv: 2603.09692 · arxiv_version: 2603.09692v2 · doi: 10.48550/arxiv.2603.09692 · pith_short_12: WPPVX4YI7CE6 · pith_short_16: WPPVX4YI7CE6SHPV · pith_short_8: WPPVX4YI

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/WPPVX4YI7CE6SHPVPH7B2PMEA7 \
  | 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: b3df5bf308f889e91df579fe1d3d8407fa18f406d74bb316ecc22ad854e1aa87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b0087dc40ba152e9bdb003ff46925a5a5fbe4075bc4c62a21014694cba48d1a",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-03-10T13:59:50Z",
    "title_canon_sha256": "4e9420601e7334c01043358ee4a31cae7ee80a6c0cc09ec9a53300e6210de8cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.09692",
    "kind": "arxiv",
    "version": 2
  }
}