Pith Number

pith:B5VSREXH

pith:2009:B5VSREXHV5LQUJLZUI4JMDLY7P

not attested not anchored not stored refs pending

Determination of constitutive and morphological parameters of columnar thin films by inverse homogenization

Akhlesh Lakhtakia (Pennsylvania State University), Tom G. Mackay (University of Edinburgh)

arxiv:0909.5375 v1 · 2009-09-29 · 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{B5VSREXHV5LQUJLZUI4JMDLY7P}

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	2026-05-18T02:11:36.399798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f6b2892e7af570a2579a238960d78fbf896fd7359e7865b7149546bf1221d25

Aliases

arxiv: 0909.5375 · arxiv_version: 0909.5375v1 · doi: 10.48550/arxiv.0909.5375 · pith_short_12: B5VSREXHV5LQ · pith_short_16: B5VSREXHV5LQUJLZ · pith_short_8: B5VSREXH

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/B5VSREXHV5LQUJLZUI4JMDLY7P \
  | 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: 0f6b2892e7af570a2579a238960d78fbf896fd7359e7865b7149546bf1221d25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "febda87b2a2dfbc29e80aed66f64185cc03a96153819d78bec4ef636a7068f99",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-09-29T16:12:04Z",
    "title_canon_sha256": "5943e6bfdc04be0eb95a4b227915b435ee0d6bf705b25c6f891d5201a7d103c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5375",
    "kind": "arxiv",
    "version": 1
  }
}