Pith Number

pith:X4UIYW2A

pith:2015:X4UIYW2A2MDIGHFBGXXPIYCT5Z

not attested not anchored not stored refs pending

Quantum Cascade Laser Frequency Combs

Andreas Hugi, Christopher Bonzon, Giacomo Scalari, Gustavo Villares, J\'er\^ome Faist, Markus R\"osch, Mattias Beck

arxiv:1510.09075 v1 · 2015-10-30 · 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{X4UIYW2A2MDIGHFBGXXPIYCT5Z}

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	2026-05-18T01:28:23.260431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf288c5b40d306831ca135eef46053ee7a4011e9765d16750fd29945f7c0b1e1

Aliases

arxiv: 1510.09075 · arxiv_version: 1510.09075v1 · doi: 10.48550/arxiv.1510.09075 · pith_short_12: X4UIYW2A2MDI · pith_short_16: X4UIYW2A2MDIGHFB · pith_short_8: X4UIYW2A

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/X4UIYW2A2MDIGHFBGXXPIYCT5Z \
  | 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: bf288c5b40d306831ca135eef46053ee7a4011e9765d16750fd29945f7c0b1e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d2d9d80baad9940b72abe0b3f5c1f9a999301469acf73f23406f383d7088d3b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-10-30T13:07:20Z",
    "title_canon_sha256": "e8cd6f30d2a57be93ca56778df7df4d81336634a9cdd4590b90de915ea61e66e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.09075",
    "kind": "arxiv",
    "version": 1
  }
}