Pith Number

pith:GL446AUI

pith:2018:GL446AUIJA7FF7KAEWNFBGBKXJ

not attested not anchored not stored refs pending

Capacity-Achieving Private Information Retrieval Codes with Optimal Message Size and Upload Cost

Chao Tian, Hua Sun, Jun Chen

arxiv:1808.07536 v2 · 2018-08-22 · cs.IT · cs.CR · cs.DS · 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{GL446AUIJA7FF7KAEWNFBGBKXJ}

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	2026-05-17T23:52:05.451826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32f9cf0288483e52fd40259a50982aba4b4fee824409c39cf4626877cdb0ac4a

Aliases

arxiv: 1808.07536 · arxiv_version: 1808.07536v2 · doi: 10.48550/arxiv.1808.07536 · pith_short_12: GL446AUIJA7F · pith_short_16: GL446AUIJA7FF7KA · pith_short_8: GL446AUI

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/GL446AUIJA7FF7KAEWNFBGBKXJ \
  | 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: 32f9cf0288483e52fd40259a50982aba4b4fee824409c39cf4626877cdb0ac4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd06a870b67fb708404994f998f229423101378e4b0e01a790d7f3f5648a7171",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.DS",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-08-22T19:34:22Z",
    "title_canon_sha256": "da771d5991a1244ef7d14d88c457e0361a6b120997a25d5be884c56e6aa5f964"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07536",
    "kind": "arxiv",
    "version": 2
  }
}