Pith Number

pith:LEWR4DJU

pith:2019:LEWR4DJUHTBUVSWG4CS77OFI4Q

not attested not anchored not stored refs pending

Robust kHz-linewidth distributed Bragg reflector laser with optoelectronic feedback

Akio Kawasaki, Bojan Zlatkovi\'c, Boris Braverman, Edwin Pedrozo-Pe\~nafiel, Megan Yamoah, Vladan Vuleti\'c

arxiv:1910.03041 v1 · 2019-10-07 · 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{LEWR4DJUHTBUVSWG4CS77OFI4Q}

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	2026-07-05T00:31:22.414713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

592d1e0d343cc34acac6e0a5ffb8a8e41f4f0d1458bab947bf5ef7b67a10317b

Aliases

arxiv: 1910.03041 · arxiv_version: 1910.03041v1 · doi: 10.48550/arxiv.1910.03041 · pith_short_12: LEWR4DJUHTBU · pith_short_16: LEWR4DJUHTBUVSWG · pith_short_8: LEWR4DJU

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/LEWR4DJUHTBUVSWG4CS77OFI4Q \
  | 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: 592d1e0d343cc34acac6e0a5ffb8a8e41f4f0d1458bab947bf5ef7b67a10317b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e149cd4fb375491fb2a3e201275a45faaec18e2b20a43fec9a750af8a637b0ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-10-07T19:24:19Z",
    "title_canon_sha256": "57a9307e0dd1ead8284b0cd0da60f19f1a34b9bf0058ca00163bdaeb6aa1c21d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.03041",
    "kind": "arxiv",
    "version": 1
  }
}