Pith Number

pith:KESBU5QG

pith:2025:KESBU5QGEDZN2YMGT7EZR7SM6M

not attested not anchored not stored refs pending

ACT: Automated Constraint Targeting for Multi-Objective Recommender Systems

Daryl Chang, Jennifer She, Li Wei, Lukasz Heldt, Yi Wu

arxiv:2509.03661 v1 · 2025-09-03 · cs.IR · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KESBU5QGEDZN2YMGT7EZR7SM6M}

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	2026-07-05T12:04:43.882469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51241a760620f2dd61869fc998fe4cf31b52f3e33a3ed1f179361763d7b550a4

Aliases

arxiv: 2509.03661 · arxiv_version: 2509.03661v1 · doi: 10.48550/arxiv.2509.03661 · pith_short_12: KESBU5QGEDZN · pith_short_16: KESBU5QGEDZN2YMG · pith_short_8: KESBU5QG

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/KESBU5QGEDZN2YMGT7EZR7SM6M \
  | 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: 51241a760620f2dd61869fc998fe4cf31b52f3e33a3ed1f179361763d7b550a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b05bf5c207536780228451eae199871033d698dfa4d940d4ebea1ef5d6bb6509",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2025-09-03T19:24:03Z",
    "title_canon_sha256": "227413146ea37775d47cfadc5a78b8ab83d69ff2e3ad13213255d0cbca1d1a1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.03661",
    "kind": "arxiv",
    "version": 1
  }
}