Pith Number

pith:6WUBSONL

pith:2019:6WUBSONLLW7MKMF6325E675QOE

not attested not anchored not stored refs pending

CPA-laser effect and exceptional points in PT-symmetric multilayer structures

Denis Novitsky

arxiv:1908.04523 v1 · 2019-08-13 · 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{6WUBSONLLW7MKMF6325E675QOE}

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	2026-07-04T23:55:14.516242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5a81939ab5dbec530bedeba4f7fb0713ad0a987e18a94c0e3f79983b1d520b1

Aliases

arxiv: 1908.04523 · arxiv_version: 1908.04523v1 · doi: 10.48550/arxiv.1908.04523 · pith_short_12: 6WUBSONLLW7M · pith_short_16: 6WUBSONLLW7MKMF6 · pith_short_8: 6WUBSONL

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/6WUBSONLLW7MKMF6325E675QOE \
  | 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: f5a81939ab5dbec530bedeba4f7fb0713ad0a987e18a94c0e3f79983b1d520b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09eae6360d14f0d58e3cb4c32811d40ec0419f307a8bb81c92b30c40adf4a236",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-08-13T07:35:00Z",
    "title_canon_sha256": "085b93ab4e6db48ac52a5d3a292f43b777eada9617c8e3c55d6bf63072457ab5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04523",
    "kind": "arxiv",
    "version": 1
  }
}