Pith Number

pith:3ZEV4ZVT

pith:2018:3ZEV4ZVT7GUTL3SVQ7UA75SCFW

not attested not anchored not stored refs pending

Quantum enhancement of signal-to-noise ratio with a heralded linear amplifier

Jie Zhao, Jing Yan Haw, Josephine Dias, Mark Bradshaw, Ping Koy Lam, Remi Blandino, Syed M. Assad, Thomas Symul, Timothy C. Ralph

arxiv:1806.10725 v1 · 2018-06-28 · physics.optics · 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{3ZEV4ZVT7GUTL3SVQ7UA75SCFW}

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	2026-05-18T00:12:08.170564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de495e66b3f9a935ee5587e80ff6422d90785535b8d31f01f41a9e557a4388e7

Aliases

arxiv: 1806.10725 · arxiv_version: 1806.10725v1 · doi: 10.48550/arxiv.1806.10725 · pith_short_12: 3ZEV4ZVT7GUT · pith_short_16: 3ZEV4ZVT7GUTL3SV · pith_short_8: 3ZEV4ZVT

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/3ZEV4ZVT7GUTL3SVQ7UA75SCFW \
  | 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: de495e66b3f9a935ee5587e80ff6422d90785535b8d31f01f41a9e557a4388e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8455c4e923f620a05baf9d2b43fb6efbdcc88dd4c225e974825e0fe0b07511b7",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-06-28T00:50:02Z",
    "title_canon_sha256": "c5c4abf54c0947d935c3ea5cdde6701a747362e5b697eb6d7384b1fe490706c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10725",
    "kind": "arxiv",
    "version": 1
  }
}