Pith Number

pith:TSHXEZUP

pith:2018:TSHXEZUPBD33ZD3ZRLMHAUSGUK

not attested not anchored not stored refs pending

The Capacity of Private Information Retrieval from Uncoded Storage Constrained Databases

Deepak Kumar, Mohamed Adel Attia, Ravi Tandon

arxiv:1805.04104 v2 · 2018-05-10 · cs.IT · cs.CR · cs.DB · cs.IR · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TSHXEZUPBD33ZD3ZRLMHAUSGUK}

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

Improved Storage for Efficient Private Information Retrieval

Receipt and verification

First computed	2026-05-18T00:02:25.142232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c8f72668f08f7bc8f798ad8705246a2b051e8eaf46e4a9b02f3055015f5cb88

Aliases

arxiv: 1805.04104 · arxiv_version: 1805.04104v2 · doi: 10.48550/arxiv.1805.04104 · pith_short_12: TSHXEZUPBD33 · pith_short_16: TSHXEZUPBD33ZD3Z · pith_short_8: TSHXEZUP

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/TSHXEZUPBD33ZD3ZRLMHAUSGUK \
  | 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: 9c8f72668f08f7bc8f798ad8705246a2b051e8eaf46e4a9b02f3055015f5cb88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5651942cd84ad3f357e2789c2300be43fe1f0fa950600a9b73af7177f140cb87",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.DB",
      "cs.IR",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-05-10T17:59:39Z",
    "title_canon_sha256": "002eb91b57bd9b1b4664fbc00d61470a83ddf08ac54ceeb2445295dc31fa1eaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04104",
    "kind": "arxiv",
    "version": 2
  }
}