Pith Number

pith:FHXRB653

pith:2018:FHXRB653UQR7YY364BUNU4NHR3

not attested not anchored not stored refs pending

Coexisting frequency combs spaced by an octave in a monolithic quantum cascade laser

Andres Forrer, Giacomo Scalari, Jerome Faist, Markus Roesch, Matthew Singleton, Mattias Beck

arxiv:1810.10203 v1 · 2018-10-24 · 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{FHXRB653UQR7YY364BUNU4NHR3}

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	2026-05-18T00:02:23.932740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29ef10fbbba423fc637ee068da71a78ec45ced587c6a07b8a2b6eb41c09fd97f

Aliases

arxiv: 1810.10203 · arxiv_version: 1810.10203v1 · doi: 10.48550/arxiv.1810.10203 · pith_short_12: FHXRB653UQR7 · pith_short_16: FHXRB653UQR7YY36 · pith_short_8: FHXRB653

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/FHXRB653UQR7YY364BUNU4NHR3 \
  | 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: 29ef10fbbba423fc637ee068da71a78ec45ced587c6a07b8a2b6eb41c09fd97f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4964dc9551c7f4423c4362da71197e274a3077fef0c28124dffda94ce68e5350",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-10-24T06:11:50Z",
    "title_canon_sha256": "c1c8dbdfe25010f7e28c0e5de95e8ed1c922ff8fce1587d9444e2c80dda0124e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.10203",
    "kind": "arxiv",
    "version": 1
  }
}