Pith Number

pith:4GKDO3LY

pith:2011:4GKDO3LY3CJVNYM2ZKSKF267OU

not attested not anchored not stored refs pending

On-chip parametric amplification with 26.5~dB gain at telecommunication wavelengths using CMOS-compatible hydrogenated amorphous silicon waveguides

Bart Kuyken, Dries Van Thourhout, Gunther Roelkens, Philippe Emplit, Roel Baets, Serge Massar, Shankar Kumar Selvaraja, St\'ephane Clemmen, Wim Bogaerts

arxiv:1102.1026 v1 · 2011-02-04 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4GKDO3LY3CJVNYM2ZKSKF267OU}

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	2026-05-18T02:03:16.492735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e194376d78d89356e19acaa4a2ebdf750c3280477efcbb1e2e29a606709e4ab3

Aliases

arxiv: 1102.1026 · arxiv_version: 1102.1026v1 · doi: 10.48550/arxiv.1102.1026 · pith_short_12: 4GKDO3LY3CJV · pith_short_16: 4GKDO3LY3CJVNYM2 · pith_short_8: 4GKDO3LY

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/4GKDO3LY3CJVNYM2ZKSKF267OU \
  | 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: e194376d78d89356e19acaa4a2ebdf750c3280477efcbb1e2e29a606709e4ab3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ab14aa64d43a83bc6aadae8ffd10980d1376f024b4aaf8e4eba0eececc25347",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2011-02-04T22:08:18Z",
    "title_canon_sha256": "8bcf3a17042d97fef7ea5b0f0db9d58376f707c8f0c3d67e51423aa3cd34f676"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.1026",
    "kind": "arxiv",
    "version": 1
  }
}