Pith Number

pith:BJVQEKXR

pith:2023:BJVQEKXRV42TCVGXWOUCYIMNM7

not attested not anchored not stored refs pending

Fully Directional Quantum-limited Phase-Preserving Amplifier

Andrew Lingenfelter, Gangqiang Liu, Michel H. Devoret, Nicholas E. Frattini, Shyam Shankar, Vidul R. Joshi, Volodymyr V. Sivak

arxiv:2305.04184 v2 · 2023-05-07 · 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{BJVQEKXRV42TCVGXWOUCYIMNM7}

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	2026-07-05T07:47:24.996569Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a6b022af1af353154d7b3a82c218d67dbfcac218f3d9d17a7163a2fa2031ef5

Aliases

arxiv: 2305.04184 · arxiv_version: 2305.04184v2 · doi: 10.48550/arxiv.2305.04184 · pith_short_12: BJVQEKXRV42T · pith_short_16: BJVQEKXRV42TCVGX · pith_short_8: BJVQEKXR

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/BJVQEKXRV42TCVGXWOUCYIMNM7 \
  | 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: 0a6b022af1af353154d7b3a82c218d67dbfcac218f3d9d17a7163a2fa2031ef5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bad409808e592a92351a70f71d3d5fd0c4f1271ce4bc98102472822611589df3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-05-07T04:01:07Z",
    "title_canon_sha256": "f73dbd002409b70ace888a8c053e19a8f1581cc4fa06cf1279185513634fd094"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.04184",
    "kind": "arxiv",
    "version": 2
  }
}