Pith Number

pith:GUBXOOFZ

pith:2019:GUBXOOFZONZDHY2O3CSUBRIIIH

not attested not anchored not stored refs pending

On-chip mid-infrared and THz frequency combs for spectroscopy

Giacomo Scalari, J\'er\^ome Faist, Nathalie Picqu\'e

arxiv:1907.04544 v1 · 2019-07-10 · 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{GUBXOOFZONZDHY2O3CSUBRIIIH}

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	2026-05-17T23:40:29.665810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35037738b9737233e34ed8a540c50841ef312bd4b130b74fb0a517fb4ae0a0df

Aliases

arxiv: 1907.04544 · arxiv_version: 1907.04544v1 · doi: 10.48550/arxiv.1907.04544 · pith_short_12: GUBXOOFZONZD · pith_short_16: GUBXOOFZONZDHY2O · pith_short_8: GUBXOOFZ

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/GUBXOOFZONZDHY2O3CSUBRIIIH \
  | 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: 35037738b9737233e34ed8a540c50841ef312bd4b130b74fb0a517fb4ae0a0df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e31c35f000b92ee0df0e3c0fac0b365594b12059b30246a68c755eae36c743f9",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-07-10T07:24:38Z",
    "title_canon_sha256": "633fbf19994d06397c14f82c73d7a2ebcaa6d0d66299a26a33f89de579e6c1d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04544",
    "kind": "arxiv",
    "version": 1
  }
}