Pith Number

pith:7WKMGTYY

pith:2018:7WKMGTYYEFMBJ6FWFYMZ7JDB7R

not attested not anchored not stored refs pending

The Capacity of Private Information Retrieval with Eavesdroppers

Hua Sun, Mikael Skoglund, Qiwen Wang

arxiv:1804.10189 v2 · 2018-04-26 · cs.IT · cs.CR · 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{7WKMGTYYEFMBJ6FWFYMZ7JDB7R}

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	2026-05-18T00:00:08.610726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd94c34f18215814f8b62e199fa461fc7074e84825a1501f9bbcb2f85fe63eea

Aliases

arxiv: 1804.10189 · arxiv_version: 1804.10189v2 · doi: 10.48550/arxiv.1804.10189 · pith_short_12: 7WKMGTYYEFMB · pith_short_16: 7WKMGTYYEFMBJ6FW · pith_short_8: 7WKMGTYY

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/7WKMGTYYEFMBJ6FWFYMZ7JDB7R \
  | 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: fd94c34f18215814f8b62e199fa461fc7074e84825a1501f9bbcb2f85fe63eea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d4ea5320b788e5c150c31b0976d3fe677f7323f4e297825d8976565358bef36",
    "cross_cats_sorted": [
      "cs.CR",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-04-26T17:40:10Z",
    "title_canon_sha256": "dbe5e9c978c34a8fb574ff7510ccef157d7ffed17a761398bbbc87bd0088c184"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10189",
    "kind": "arxiv",
    "version": 2
  }
}