Pith Number

pith:LHVYVV2E

pith:2022:LHVYVV2EY6QFQKO7SON375Y4RW

not attested not anchored not stored refs pending

A Utility-Preserving Obfuscation Approach for YouTube Recommendations

Hadi Askari, Jiang Zhang, Konstantinos Psounis, Zubair Shafiq

arxiv:2210.08136 v2 · 2022-10-14 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LHVYVV2EY6QFQKO7SON375Y4RW}

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	2026-07-05T06:21:29.358689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59eb8ad744c7a05829df939bbff71c8dac7554433f69a8effb25e6984bd26770

Aliases

arxiv: 2210.08136 · arxiv_version: 2210.08136v2 · doi: 10.48550/arxiv.2210.08136 · pith_short_12: LHVYVV2EY6QF · pith_short_16: LHVYVV2EY6QFQKO7 · pith_short_8: LHVYVV2E

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/LHVYVV2EY6QFQKO7SON375Y4RW \
  | 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: 59eb8ad744c7a05829df939bbff71c8dac7554433f69a8effb25e6984bd26770

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba155a6ae89f758eaaf16e5ea8904bfcbf02a44f8f8e725c101382356f26e6a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2022-10-14T22:05:15Z",
    "title_canon_sha256": "4baa2bd5da85d0de171749586ff114b905fd9eeecf00a8ef870cf71af396ec8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2210.08136",
    "kind": "arxiv",
    "version": 2
  }
}