Pith Number

pith:ZRYS2HUD

pith:2019:ZRYS2HUD4PWH2PLZVO4UFFHNW6

not attested not anchored not stored refs pending

Exceptional points-based optical amplifiers

A. Eisfeld, A. Metelmann, Q. Zhong, R. El-Ganainy, S.K. Ozdemir

arxiv:1904.13005 v1 · 2019-04-30 · 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{ZRYS2HUD4PWH2PLZVO4UFFHNW6}

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.

Cited by

1 paper in Pith

Enhanced stability, bistability, and exceptional points in saturable active photonic couplers

Receipt and verification

First computed	2026-07-05T00:38:24.417584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc712d1e83e3ec7d3d79abb94294edb79d23a51c237ebaed4c5b4110e87499db

Aliases

arxiv: 1904.13005 · arxiv_version: 1904.13005v1 · doi: 10.48550/arxiv.1904.13005 · pith_short_12: ZRYS2HUD4PWH · pith_short_16: ZRYS2HUD4PWH2PLZ · pith_short_8: ZRYS2HUD

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/ZRYS2HUD4PWH2PLZVO4UFFHNW6 \
  | 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: cc712d1e83e3ec7d3d79abb94294edb79d23a51c237ebaed4c5b4110e87499db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4f4f38ac322c74691d6bb4f890618da0634d93fc8e8860db42e8996ffa2319d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-04-30T01:00:43Z",
    "title_canon_sha256": "a30913cb683addac43f3455082868fcf37b72d1189d32f503a7c9578ebe2a5d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.13005",
    "kind": "arxiv",
    "version": 1
  }
}