Pith Number

pith:BU66D4Q4

pith:2019:BU66D4Q4ZP6BPSWSHYPBZCPUDN

not attested not anchored not stored refs pending

Weakly-Private Information Retrieval

Alexandre Graell i Amat, Eirik Rosnes, Eitan Yaakobi, Hsuan-Yin Lin, Siddhartha Kumar

arxiv:1901.06730 v2 · 2019-01-20 · cs.IT · 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{BU66D4Q4ZP6BPSWSHYPBZCPUDN}

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	2026-05-17T23:47:02.077415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d3de1f21ccbfc17cad23e1e1c89f41b51d925f5e7a7250f49ebd5a94cdcda5e

Aliases

arxiv: 1901.06730 · arxiv_version: 1901.06730v2 · doi: 10.48550/arxiv.1901.06730 · pith_short_12: BU66D4Q4ZP6B · pith_short_16: BU66D4Q4ZP6BPSWS · pith_short_8: BU66D4Q4

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/BU66D4Q4ZP6BPSWSHYPBZCPUDN \
  | 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: 0d3de1f21ccbfc17cad23e1e1c89f41b51d925f5e7a7250f49ebd5a94cdcda5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0021392f42795a7b2d9218b22ad5187315ff0d3cf4b1f8f9a07ec311106e91ba",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-01-20T20:53:09Z",
    "title_canon_sha256": "00b1658a59aded23d50690ddf6b2819dac05b953ff9112369fc75483e87a8f79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06730",
    "kind": "arxiv",
    "version": 2
  }
}