Pith Number

pith:QSLBUFAR

pith:2021:QSLBUFARXEC3SSTWEHGS6HQRTB

not attested not anchored not stored refs pending

Privacy in Open Search: A Review of Challenges and Solutions

Christian Guetl, Roman Kern, Samuel Sousa

arxiv:2110.10720 v4 · 2021-10-20 · cs.CR · cs.AI · 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{QSLBUFARXEC3SSTWEHGS6HQRTB}

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.

Cited by

1 paper in Pith

Effective and secure federated online learning to rank

Receipt and verification

First computed	2026-07-05T04:11:08.897260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84961a1411b905b94a7621cd2f1e1198539b0adb674bb6b403d190b0e9713f32

Aliases

arxiv: 2110.10720 · arxiv_version: 2110.10720v4 · doi: 10.48550/arxiv.2110.10720 · pith_short_12: QSLBUFARXEC3 · pith_short_16: QSLBUFARXEC3SSTW · pith_short_8: QSLBUFAR

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/QSLBUFARXEC3SSTWEHGS6HQRTB \
  | 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: 84961a1411b905b94a7621cd2f1e1198539b0adb674bb6b403d190b0e9713f32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3953f2587baf124f9057f1789fe648324ab78ce9001e02a0d5d26f8fe215768",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2021-10-20T18:38:48Z",
    "title_canon_sha256": "1a01b2659adc9332d0f248a7584946d58d41b5418c296a21eac30e65c89028c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.10720",
    "kind": "arxiv",
    "version": 4
  }
}