Pith Number

pith:7O4OLGSJ

pith:2019:7O4OLGSJBG7ULGEEVUQ7773ZKA

not attested not anchored not stored refs pending

SHG (532 nm)-induced spontaneous parametric downconversion noise in 1064 nm-pumped IR upconversion detectors

A. Padhye, C. Pedersen, L. Meng, M. Ebrahim-Zadeh, P. J. Rodrigo

arxiv:1903.00260 v1 · 2019-03-01 · 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{7O4OLGSJBG7ULGEEVUQ7773ZKA}

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	2026-05-17T23:47:16.920685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbb8e59a4909bf459884ad21ffff79501db14aa9a1259f3c0950580bfb060ce2

Aliases

arxiv: 1903.00260 · arxiv_version: 1903.00260v1 · doi: 10.48550/arxiv.1903.00260 · pith_short_12: 7O4OLGSJBG7U · pith_short_16: 7O4OLGSJBG7ULGEE · pith_short_8: 7O4OLGSJ

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/7O4OLGSJBG7ULGEEVUQ7773ZKA \
  | 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: fbb8e59a4909bf459884ad21ffff79501db14aa9a1259f3c0950580bfb060ce2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c83ec8e6f0fe626a8f9a11017a32e3a14cf571b295cb0597c448d865f41fa40",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-03-01T12:08:09Z",
    "title_canon_sha256": "59efb6cf0a5c81df08fd289be194c788ab5eb1d0be0db2120174cc98cb9d5403"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.00260",
    "kind": "arxiv",
    "version": 1
  }
}