Pith Number

pith:ULQZLDAK

pith:2017:ULQZLDAK2VMDG7ZZGPPG55UTY7

not attested not anchored not stored refs pending

Lengthening and Extending Binary Private Information Retrieval Codes

Eirik Rosnes, Hsuan-Yin Lin

arxiv:1707.03495 v3 · 2017-07-11 · 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{ULQZLDAK2VMDG7ZZGPPG55UTY7}

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	2026-05-18T00:25:18.036735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2e1958c0ad558337f3933de6ef693c7f6240d1ab00bfebe1f884e1511a4623e

Aliases

arxiv: 1707.03495 · arxiv_version: 1707.03495v3 · doi: 10.48550/arxiv.1707.03495 · pith_short_12: ULQZLDAK2VMD · pith_short_16: ULQZLDAK2VMDG7ZZ · pith_short_8: ULQZLDAK

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/ULQZLDAK2VMDG7ZZGPPG55UTY7 \
  | 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: a2e1958c0ad558337f3933de6ef693c7f6240d1ab00bfebe1f884e1511a4623e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7c25e7a302b4c043498ae5a1bd06779c114f98ffc7d66b6986d4717066c4fe9",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-07-11T23:28:55Z",
    "title_canon_sha256": "8defccabcf593e5564a33297cd10832511ec86b22e8c55a44c79d8e4a84e732a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.03495",
    "kind": "arxiv",
    "version": 3
  }
}