Pith Number

pith:DWQCHKZV

pith:2019:DWQCHKZVG52EZSBWMM2WSYKMSP

not attested not anchored not stored refs pending

Trimming and ultra-wide bandwidth expansion of silicon frequency comb spectra with self-adaptive boundary waveguides

Carlos Alonso-Ramos, Eric Cassan, Jianhao Zhang, Laurent Vivien, Sailing He, Vincent Pelgrin

arxiv:1907.11774 v1 · 2019-07-26 · 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{DWQCHKZVG52EZSBWMM2WSYKMSP}

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	2026-05-17T23:39:23.102549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1da023ab3537744cc836633569614c93d92d861721091124621cef1aaefedae2

Aliases

arxiv: 1907.11774 · arxiv_version: 1907.11774v1 · doi: 10.48550/arxiv.1907.11774 · pith_short_12: DWQCHKZVG52E · pith_short_16: DWQCHKZVG52EZSBW · pith_short_8: DWQCHKZV

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/DWQCHKZVG52EZSBWMM2WSYKMSP \
  | 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: 1da023ab3537744cc836633569614c93d92d861721091124621cef1aaefedae2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fddd645ea3087fbb060c28473c28a71eccdacd356e8dbe9b590109a02deb2a8a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-07-26T19:55:18Z",
    "title_canon_sha256": "44383acb1d9f97abc379c8eb1c9474dbca9266e926a5c9e33c0de89c50c23a04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.11774",
    "kind": "arxiv",
    "version": 1
  }
}