Pith Number

pith:QD27652P

pith:2013:QD27652PZ6HR2GVO26EZSNECAP

not attested not anchored not stored refs pending

State-dependent linear-optical qubit amplifier

Anton\'in \v{C}ernoch, Karel Lemr, Karol Bartkiewicz

arxiv:1309.4724 v1 · 2013-09-18 · 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{QD27652PZ6HR2GVO26EZSNECAP}

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	2026-05-18T03:05:35.348202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80f5ff774fcf8f1d1aaed78999348203e8b266785e143fcc5253b3c4f8a80278

Aliases

arxiv: 1309.4724 · arxiv_version: 1309.4724v1 · doi: 10.48550/arxiv.1309.4724 · pith_short_12: QD27652PZ6HR · pith_short_16: QD27652PZ6HR2GVO · pith_short_8: QD27652P

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/QD27652PZ6HR2GVO26EZSNECAP \
  | 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: 80f5ff774fcf8f1d1aaed78999348203e8b266785e143fcc5253b3c4f8a80278

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85300a070cc1fc3eba8572baede4304406a8673d6c906972dce5c8427fe52909",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-09-18T17:49:48Z",
    "title_canon_sha256": "f7588a7f154f551facc05da58b3fabcd793113c4e602040bc911d114746f3b8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4724",
    "kind": "arxiv",
    "version": 1
  }
}