Pith Number

pith:PSKJIA6R

pith:2011:PSKJIA6RELVUR4PIPXOBMUDSPH

not attested not anchored not stored refs pending

Simple proof of the quantum benchmark fidelity for continuous-variable quantum devices

Ryo Namiki

arxiv:1104.1017 v1 · 2011-04-06 · 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{PSKJIA6RELVUR4PIPXOBMUDSPH}

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	2026-05-18T04:23:34.860958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c949403d122eb48f1e87ddc16507279c57b5ec2d5e3ef0362b73b2efc546753

Aliases

arxiv: 1104.1017 · arxiv_version: 1104.1017v1 · doi: 10.48550/arxiv.1104.1017 · pith_short_12: PSKJIA6RELVU · pith_short_16: PSKJIA6RELVUR4PI · pith_short_8: PSKJIA6R

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/PSKJIA6RELVUR4PIPXOBMUDSPH \
  | 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: 7c949403d122eb48f1e87ddc16507279c57b5ec2d5e3ef0362b73b2efc546753

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ca20aab72792f34d306992467c429be038385279f3a59ed48af687a7c3cec8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-04-06T06:47:20Z",
    "title_canon_sha256": "7621bd83353d104a8e93b2f1846eeb266940c193f773a8154fba8dd1cef92d2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1017",
    "kind": "arxiv",
    "version": 1
  }
}