Pith Number

pith:XVOFYSX5

pith:2019:XVOFYSX52PRHKWOHVLNSAYWRAX

not attested not anchored not stored refs pending

Superconducting Josephson-based metamaterials for quantum-limited parametric amplification: a review

Angelo Greco, Emanuele Enrico, Luca Fasolo

arxiv:1908.06889 v1 · 2019-08-19 · cond-mat.supr-con · 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{XVOFYSX52PRHKWOHVLNSAYWRAX}

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	2026-07-04T23:58:20.704723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd5c5c4afdd3e27559c7aadb2062d105dd6db42cc85649204882d9e29fe7fe87

Aliases

arxiv: 1908.06889 · arxiv_version: 1908.06889v1 · doi: 10.48550/arxiv.1908.06889 · pith_short_12: XVOFYSX52PRH · pith_short_16: XVOFYSX52PRHKWOH · pith_short_8: XVOFYSX5

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/XVOFYSX52PRHKWOHVLNSAYWRAX \
  | 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: bd5c5c4afdd3e27559c7aadb2062d105dd6db42cc85649204882d9e29fe7fe87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03d45c6963080a0c0186dfcf8dcb6eb4430dfb4810e84450b4ccea82969bff03",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2019-08-19T15:46:40Z",
    "title_canon_sha256": "213c8f9f54c51d311cff977bec26f32fdc742c9c8dc96e2461db9c8284890afd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06889",
    "kind": "arxiv",
    "version": 1
  }
}