Pith Number

pith:DICMYY5V

pith:1998:DICMYY5VTXGLTZ5YDL43WLHHIW

not attested not anchored not stored refs pending

Quantum noise reduction in singly resonant sub/second harmonic generation

C. Cabrillo, J. L. Roldan, P. Garcia-Fernandez

arxiv:quant-ph/9804007 v1 · 1998-04-02 · quant-ph · 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{DICMYY5VTXGLTZ5YDL43WLHHIW}

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	2026-05-18T01:05:00.558410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a04cc63b59dccb9e7b81af9bb2ce745ac7a2f1eaf6ecb83b31baaf8577c18ba

Aliases

arxiv: quant-ph/9804007 · arxiv_version: quant-ph/9804007v1 · doi: 10.48550/arxiv.quant-ph/9804007 · pith_short_12: DICMYY5VTXGL · pith_short_16: DICMYY5VTXGLTZ5Y · pith_short_8: DICMYY5V

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/DICMYY5VTXGLTZ5YDL43WLHHIW \
  | 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: 1a04cc63b59dccb9e7b81af9bb2ce745ac7a2f1eaf6ecb83b31baaf8577c18ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ab211fb682d99e50a59c513a665f469b4877c208810d75c9cd0282da740ce10",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1998-04-02T09:50:49Z",
    "title_canon_sha256": "42b6abd4b1f2d7e772fcba80cbe4ab71ad53e96eda3d1e11f26323542bdaf2e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9804007",
    "kind": "arxiv",
    "version": 1
  }
}