Pith Number

pith:5UTVWVCZ

pith:2013:5UTVWVCZ4O2PCPRT5GAXEKCS5F

not attested not anchored not stored refs pending

Performing private database queries in a real-world environment using a quantum protocol

Christoph Simon, Itzel Lucio-Martinez, Philip Chan, Wolfgang Tittel, Xiaofan Mo

arxiv:1303.0865 v2 · 2013-03-04 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5UTVWVCZ4O2PCPRT5GAXEKCS5F}

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	2026-05-18T02:45:56.044141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed275b5459e3b4f13e33e981722852e9411567c9aa65528da2d9f5f122bb7518

Aliases

arxiv: 1303.0865 · arxiv_version: 1303.0865v2 · doi: 10.48550/arxiv.1303.0865 · pith_short_12: 5UTVWVCZ4O2P · pith_short_16: 5UTVWVCZ4O2PCPRT · pith_short_8: 5UTVWVCZ

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/5UTVWVCZ4O2PCPRT5GAXEKCS5F \
  | 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: ed275b5459e3b4f13e33e981722852e9411567c9aa65528da2d9f5f122bb7518

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63dd2a4e5dc5c482356adf664cf2173fe1a34f99b02650969850796822568b5b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-03-04T21:32:17Z",
    "title_canon_sha256": "9205cd5a35f0d810bd9653ec2dafbcd64097b5b61c2d2862ffecc3087778bc69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0865",
    "kind": "arxiv",
    "version": 2
  }
}