Pith Number

pith:W7HULFIF

pith:2026:W7HULFIFSBQG4VIT2WKPMX3RCY

not attested not anchored not stored refs pending

Beyond Retrieval: Learning Compact User Representations for Scalable LLM Personalization

Changlin Zhao, Fan Zhang, Heng Cao, Huaiyu Fu, Jian Yao, Lu Hao, Wangze Ni, Xuyan Mo, Yujie Zheng, Yuqian Sun, Yuxuan Wei

arxiv:2606.04547 v1 · 2026-06-03 · cs.IR · 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{W7HULFIFSBQG4VIT2WKPMX3RCY}

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	2026-06-04T01:09:17.378704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7cf45950590606e5513d594f65f7116116a843b0be8f006c6efa5242efcef55

Aliases

arxiv: 2606.04547 · arxiv_version: 2606.04547v1 · doi: 10.48550/arxiv.2606.04547 · pith_short_12: W7HULFIFSBQG · pith_short_16: W7HULFIFSBQG4VIT · pith_short_8: W7HULFIF

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/W7HULFIFSBQG4VIT2WKPMX3RCY \
  | 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: b7cf45950590606e5513d594f65f7116116a843b0be8f006c6efa5242efcef55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82d8bd6017fb40d555cdf23b3c03b2cb55018125b0b9fa1da348ebf416b95afd",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-06-03T07:32:18Z",
    "title_canon_sha256": "ea25fdcf6f0a53be6f6e83bab41386cd380b1a78304a620fe5b940cf1f7e554c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.04547",
    "kind": "arxiv",
    "version": 1
  }
}