Pith Number

pith:QF4SCNFM

pith:2022:QF4SCNFMYPEPXYBPY3YCD2AHZN

not attested not anchored not stored refs pending

Magnetic field-resilient quantum-limited parametric amplifier

Gangqiang Liu, Hong X.Tang, Mingrui Xu, Risheng Cheng, Yufeng Wu

arxiv:2209.13652 v2 · 2022-09-27 · 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{QF4SCNFMYPEPXYBPY3YCD2AHZN}

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	2026-07-05T05:16:36.394940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81792134acc3c8fbe02fc6f021e807cb4cc1c3e0f6c5ad015c4e18b79fdfc1f5

Aliases

arxiv: 2209.13652 · arxiv_version: 2209.13652v2 · doi: 10.48550/arxiv.2209.13652 · pith_short_12: QF4SCNFMYPEP · pith_short_16: QF4SCNFMYPEPXYBP · pith_short_8: QF4SCNFM

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/QF4SCNFMYPEPXYBPY3YCD2AHZN \
  | 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: 81792134acc3c8fbe02fc6f021e807cb4cc1c3e0f6c5ad015c4e18b79fdfc1f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eeaf9e626b32f1586cc7542ec068cb65bf72bef43c1e660f330d0e2150cd3589",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-09-27T19:37:51Z",
    "title_canon_sha256": "c49bb87f254eebd64268d2e9a83d24ecb276c282f603c651f8e431419a58bd9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.13652",
    "kind": "arxiv",
    "version": 2
  }
}