Pith Number

pith:FVOOOPHF

pith:2021:FVOOOPHF44L6PIPMRIYHZ4AJDM

not attested not anchored not stored refs pending

Engineering the spectral bandwidth of quantum cascade laser frequency combs

Benedikt Schwarz, Gottfried Strasser, Johannes Hillbrand, Maximilian Beiser, Nikola Opa\v{c}ak

arxiv:2103.04307 v1 · 2021-03-07 · physics.optics · nlin.PS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FVOOOPHF44L6PIPMRIYHZ4AJDM}

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	2026-07-05T03:02:47.383364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d5ce73ce5e717e7a1ec8a307cf0091b17c0cc84ae84fad56d372287f64150e0

Aliases

arxiv: 2103.04307 · arxiv_version: 2103.04307v1 · doi: 10.48550/arxiv.2103.04307 · pith_short_12: FVOOOPHF44L6 · pith_short_16: FVOOOPHF44L6PIPM · pith_short_8: FVOOOPHF

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/FVOOOPHF44L6PIPMRIYHZ4AJDM \
  | 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: 2d5ce73ce5e717e7a1ec8a307cf0091b17c0cc84ae84fad56d372287f64150e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ddded115bf2aef84f2984bd13988d0bdd391ae6a9a5abaa64c4aac46163ec8b",
    "cross_cats_sorted": [
      "nlin.PS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-03-07T09:38:50Z",
    "title_canon_sha256": "ae3e9a4bc25d9020a777dca683ed0d4ed4244ddfcf8fd75b9a97712ed19bbe80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.04307",
    "kind": "arxiv",
    "version": 1
  }
}