Pith Number

pith:ULBUKAN4

pith:2025:ULBUKAN4I4FKG6BBAXZZDGLFCL

not attested not anchored not stored refs pending

Stratified Expert Cloning for Retention-Aware Recommendation at Scale

Annan Xie, Chengzhi Lin, Chuyuan Wang, Shuchang Liu, Wuhong Wang, Yongqi Liu

arxiv:2504.05628 v2 · 2025-04-08 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ULBUKAN4I4FKG6BBAXZZDGLFCL}

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	2026-07-05T12:09:16.228381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2c34501bc470aa3782105f391996512eac8d719887598b57bdf78ea4c967a5b

Aliases

arxiv: 2504.05628 · arxiv_version: 2504.05628v2 · doi: 10.48550/arxiv.2504.05628 · pith_short_12: ULBUKAN4I4FK · pith_short_16: ULBUKAN4I4FKG6BB · pith_short_8: ULBUKAN4

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/ULBUKAN4I4FKG6BBAXZZDGLFCL \
  | 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: a2c34501bc470aa3782105f391996512eac8d719887598b57bdf78ea4c967a5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "178537e67e140a7920a132af259d2f63af6ab598d73e38ce8cfc1aea29e98f63",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2025-04-08T03:10:42Z",
    "title_canon_sha256": "6152c60fb65bf4a796d8ee43a0c74dc3a9261bdba4dd8523d222e34df83b9792"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.05628",
    "kind": "arxiv",
    "version": 2
  }
}