Pith Number

pith:25ELDLTA

pith:2021:25ELDLTAXXAQLY7LBSUUIISM2S

not attested not anchored not stored refs pending

Spectrally resolved linewidth enhancement factor of a semiconductor frequency comb

Benedikt Schwarz, Bernhard Lendl, Dmitry Kazakov, Federico Capasso, Florian Pilat, Georg Ramer, Nikola Opa\v{c}ak, Sandro Dal Cin

arxiv:2104.05747 v1 · 2021-04-12 · 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{25ELDLTAXXAQLY7LBSUUIISM2S}

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	2026-07-05T02:31:24.630098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d748b1ae60bdc105e3eb0ca944224cd48928903a00b18569b59952ade4a6b9d3

Aliases

arxiv: 2104.05747 · arxiv_version: 2104.05747v1 · doi: 10.48550/arxiv.2104.05747 · pith_short_12: 25ELDLTAXXAQ · pith_short_16: 25ELDLTAXXAQLY7L · pith_short_8: 25ELDLTA

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/25ELDLTAXXAQLY7LBSUUIISM2S \
  | 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: d748b1ae60bdc105e3eb0ca944224cd48928903a00b18569b59952ade4a6b9d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75cbf6b91451bc0666ca400cf7af9ecf2eebac78aa6b4e2850c7dc04c1905b60",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-04-12T18:16:43Z",
    "title_canon_sha256": "2ffc767b22e1da48017aba7f8a9d4b7cb13fe35b283da3af4009493a0a1f7969"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05747",
    "kind": "arxiv",
    "version": 1
  }
}