Pith Number

pith:XJCPI7IB

pith:2026:XJCPI7IBH7QNDWI4C7VNQDNC3H

not attested not anchored not stored refs pending

Practical Evaluation of FFT-Based Thickness Extraction for Thick-Film Reflectometry

Chester Chien, Enrique A. Lopez-Guerra, Michael Kwan, Zimu Zhou

arxiv:2608.10146 v1 · 2026-08-10 · physics.optics · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XJCPI7IBH7QNDWI4C7VNQDNC3H}

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	2026-08-12T00:22:54.506868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba44f47d013fe0d1d91c17ead80da2d9e0d72d5102f95e0fafe1de870e96667a

Aliases

arxiv: 2608.10146 · arxiv_version: 2608.10146v1 · doi: 10.48550/arxiv.2608.10146 · pith_short_12: XJCPI7IBH7QN · pith_short_16: XJCPI7IBH7QNDWI4 · pith_short_8: XJCPI7IB

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/XJCPI7IBH7QNDWI4C7VNQDNC3H \
  | 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: ba44f47d013fe0d1d91c17ead80da2d9e0d72d5102f95e0fafe1de870e96667a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9b5586e86f1eef209c95c9302eae6df37aedd09e7de4729b5da5fcddebe41e3",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-08-10T19:01:10Z",
    "title_canon_sha256": "d37a42fde104208bea34b71469443e519fcc20968d9009c0e1d96816d00d7d9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.10146",
    "kind": "arxiv",
    "version": 1
  }
}