Pith Number

pith:LKH2P7HO

pith:2007:LKH2P7HOLQENUYMS6Z5LYHLDZ3

not attested not anchored not stored refs pending

Measurement of focusing properties for high numerical aperture optics using an automated submicron beamprofiler

B. G. Norton, D. Kielpinski, E. W. Streed, J. J. Chapman

arxiv:0709.1004 v1 · 2007-09-07 · physics.optics · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LKH2P7HOLQENUYMS6Z5LYHLDZ3}

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	2026-05-18T04:14:36.746307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a8fa7fcee5c08da6192f67abc1d63cec1d03371fe99150b20e44ff0b5d542ca

Aliases

arxiv: 0709.1004 · arxiv_version: 0709.1004v1 · doi: 10.48550/arxiv.0709.1004 · pith_short_12: LKH2P7HOLQEN · pith_short_16: LKH2P7HOLQENUYMS · pith_short_8: LKH2P7HO

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/LKH2P7HOLQENUYMS6Z5LYHLDZ3 \
  | 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: 5a8fa7fcee5c08da6192f67abc1d63cec1d03371fe99150b20e44ff0b5d542ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a2213a0f9ed2ef18af2ef558f179796927a2f6e9c531dcd111bbed2a06e8803",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "2007-09-07T06:16:29Z",
    "title_canon_sha256": "4eab15d214194302f34757654c88e3fabb5a2dad6e8471bd84962aa8fa62c4a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.1004",
    "kind": "arxiv",
    "version": 1
  }
}