Pith Number

pith:FUX3Q5BG

pith:2018:FUX3Q5BG75WM2UC6X2QBVXTSHG

not attested not anchored not stored refs pending

A numerical mode matching method for wave scattering in a layered medium with a stratified inhomogeneity

Dawei Song, Wangtao Lu, Ya Yan Lu

arxiv:1804.08223 v1 · 2018-04-23 · math.NA · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FUX3Q5BG75WM2UC6X2QBVXTSHG}

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	2026-05-18T00:17:49.150718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d2fb87426ff6ccd505ebea01ade7239987566a6158fbbbca1d7da05ead6f5d2

Aliases

arxiv: 1804.08223 · arxiv_version: 1804.08223v1 · doi: 10.48550/arxiv.1804.08223 · pith_short_12: FUX3Q5BG75WM · pith_short_16: FUX3Q5BG75WM2UC6 · pith_short_8: FUX3Q5BG

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/FUX3Q5BG75WM2UC6X2QBVXTSHG \
  | 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: 2d2fb87426ff6ccd505ebea01ade7239987566a6158fbbbca1d7da05ead6f5d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26e92ed271aeffe3be19a757f1812d09b55c492742b543ab01db0b55583f81f5",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-04-23T02:07:27Z",
    "title_canon_sha256": "9c61d64385b1afafef7a269b9488828877a87fa238c389bc128a290b780e90af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08223",
    "kind": "arxiv",
    "version": 1
  }
}