Pith Number

pith:A4O755JA

pith:2009:A4O755JAPQOVJM7IB7E25PDTRJ

not attested not anchored not stored refs pending

Phase preserving amplification near the quantum limit with a Josephson Ring Modulator

D. E. Prober, F. Schackert, L. Frunzio, M. H. Devoret, M. Metcalfe, N. Bergeal, R. J. Schoelkopf, R. Vijay, S. M. Girvin, V. E. Manucharyan

arxiv:0912.3407 v1 · 2009-12-17 · cond-mat.mes-hall · cond-mat.supr-con

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A4O755JAPQOVJM7IB7E25PDTRJ}

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	2026-05-18T02:10:16.039174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

071dfef5207c1d54b3e80fc9aebc738a4646b6d0ea185dd364ddfd9ed91fcbd1

Aliases

arxiv: 0912.3407 · arxiv_version: 0912.3407v1 · doi: 10.48550/arxiv.0912.3407 · pith_short_12: A4O755JAPQOV · pith_short_16: A4O755JAPQOVJM7I · pith_short_8: A4O755JA

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/A4O755JAPQOVJM7IB7E25PDTRJ \
  | 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: 071dfef5207c1d54b3e80fc9aebc738a4646b6d0ea185dd364ddfd9ed91fcbd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e96da2d99db6ea21aec71563289abfa8fb230467581086a5721b6ad63f1d661",
    "cross_cats_sorted": [
      "cond-mat.supr-con"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2009-12-17T14:02:25Z",
    "title_canon_sha256": "ad28ed31b73275ee4ac6b56070fa73c6faae14d9373820952581b4c51b26031c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3407",
    "kind": "arxiv",
    "version": 1
  }
}