Pith Number

pith:F2U2G44C

pith:2023:F2U2G44CWV56RJXR77LHZ5LPEC

not attested not anchored not stored refs pending

Multi-type quantum well semiconductor membrane external-cavity surface-emitting lasers (MECSELs) for widely tunable continuous wave operation

Hermann Kahle, Hoy-My Phung, Jesse Koskinen, Mircea Guina, Patrik Rajala, Philipp Tatar-Mathes, Sanna Ranta

arxiv:2309.05409 v1 · 2023-09-11 · physics.optics · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F2U2G44CWV56RJXR77LHZ5LPEC}

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	2026-07-05T09:06:24.277678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ea9a37382b57be8a6f1ffd67cf56f20be012654c0cd5ea0f6c8462fe9d125d9

Aliases

arxiv: 2309.05409 · arxiv_version: 2309.05409v1 · doi: 10.48550/arxiv.2309.05409 · pith_short_12: F2U2G44CWV56 · pith_short_16: F2U2G44CWV56RJXR · pith_short_8: F2U2G44C

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/F2U2G44CWV56RJXR77LHZ5LPEC \
  | 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: 2ea9a37382b57be8a6f1ffd67cf56f20be012654c0cd5ea0f6c8462fe9d125d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9010ee1671c840c35be1d2727e4b5db87feae5f40c702521b517c188759afa5f",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2023-09-11T12:17:10Z",
    "title_canon_sha256": "bd57ee4a111fd4bb09bd3c184a51d6234578dd8397cc092daa305b911bc1fbdb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.05409",
    "kind": "arxiv",
    "version": 1
  }
}