Pith Number

pith:7SLOBNXT

pith:2025:7SLOBNXTC3HMAZPI2JXUUL7RYY

not attested not anchored not stored refs pending

USD: A User-Intent-Driven Sampling and Dual-Debiasing Framework for Large-Scale Homepage Recommendations

Bo Zheng, Chaoqun Hou, Cheng Guo, Jiaqi Zheng, Tong Liu, Yi Cao

arxiv:2507.06503 v2 · 2025-07-09 · 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{7SLOBNXTC3HMAZPI2JXUUL7RYY}

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	2026-07-05T11:34:54.086572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc96e0b6f316cec065e8d26f4a2ff1c633b4e6d4a0ecbcea8e17bc78a2111dea

Aliases

arxiv: 2507.06503 · arxiv_version: 2507.06503v2 · doi: 10.48550/arxiv.2507.06503 · pith_short_12: 7SLOBNXTC3HM · pith_short_16: 7SLOBNXTC3HMAZPI · pith_short_8: 7SLOBNXT

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/7SLOBNXTC3HMAZPI2JXUUL7RYY \
  | 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: fc96e0b6f316cec065e8d26f4a2ff1c633b4e6d4a0ecbcea8e17bc78a2111dea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "165da8861145634fe9028666c5572f524392b693b82c44eea3e9c7b535b3c6ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2025-07-09T03:02:23Z",
    "title_canon_sha256": "2e4d1720717d8545d8b1f2c3dea7cfbeacf38cb53f66b1f5eac03e2d20095b43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.06503",
    "kind": "arxiv",
    "version": 2
  }
}