Pith Number

pith:LE67JKSU

pith:2018:LE67JKSUAUVHTKDDMECAW4F3QZ

not attested not anchored not stored refs pending

Diode-laser-pumped continuous-wave mid-infrared optical parametric oscillator

Markku Vainio, Ville Ulvila

arxiv:1805.06135 v2 · 2018-05-16 · 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{LE67JKSUAUVHTKDDMECAW4F3QZ}

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	2026-05-18T00:11:28.826958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

593df4aa54052a79a86361040b70bb86437f249878f55da721bf48bf34c16603

Aliases

arxiv: 1805.06135 · arxiv_version: 1805.06135v2 · doi: 10.48550/arxiv.1805.06135 · pith_short_12: LE67JKSUAUVH · pith_short_16: LE67JKSUAUVHTKDD · pith_short_8: LE67JKSU

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/LE67JKSUAUVHTKDDMECAW4F3QZ \
  | 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: 593df4aa54052a79a86361040b70bb86437f249878f55da721bf48bf34c16603

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc7ee175940dfb6641103ca2228575d1c777fe3310b49750cbbf2e4f5078ad32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-05-16T05:33:21Z",
    "title_canon_sha256": "c450d6f5418df59c257559ffe68379298a8615ea37b7d999f04fba5d8343c7e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.06135",
    "kind": "arxiv",
    "version": 2
  }
}