Pith Number

pith:ORRDMCWP

pith:2019:ORRDMCWPV76ZHANVMVT4WMXZIE

not attested not anchored not stored refs pending

QCL-based frequency metrology from the mid-infrared to the THz range: a review

Francesco Cappelli, Luigi Consolino, Mario Siciliani de Cumis, Paolo De Natale

arxiv:1904.13124 v1 · 2019-04-30 · 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{ORRDMCWPV76ZHANVMVT4WMXZIE}

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	2026-05-17T23:47:22.099043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7462360acfaffd9381b56567cb32f9413d21ee785b5aef00fef307c60830585b

Aliases

arxiv: 1904.13124 · arxiv_version: 1904.13124v1 · doi: 10.48550/arxiv.1904.13124 · pith_short_12: ORRDMCWPV76Z · pith_short_16: ORRDMCWPV76ZHANV · pith_short_8: ORRDMCWP

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/ORRDMCWPV76ZHANVMVT4WMXZIE \
  | 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: 7462360acfaffd9381b56567cb32f9413d21ee785b5aef00fef307c60830585b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d42171b6e1e6d2e322476d947589e1344af97b18aee95c289747ba573646526",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-04-30T09:44:35Z",
    "title_canon_sha256": "ef0e2ce7ee9605d18a0e7622b7bdc015822bd8d3755982e95a7af1121c491337"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.13124",
    "kind": "arxiv",
    "version": 1
  }
}