Pith Number

pith:M7AHZEJC

pith:2025:M7AHZEJCYN6I4R3SYSOKP2XBUZ

not attested not anchored not stored refs pending

Lorentz-Drude dipoles in the radiative limit and their modeling in finite-difference time-domain methods

Heming Wang, Shanhui Fan

arxiv:2504.07444 v1 · 2025-04-10 · physics.optics · physics.class-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{M7AHZEJCYN6I4R3SYSOKP2XBUZ}

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	2026-07-05T11:30:43.199981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67c07c9122c37c8e4772c49ca7eae1a6576b26c80a7cfef4a272555bb61466a4

Aliases

arxiv: 2504.07444 · arxiv_version: 2504.07444v1 · doi: 10.48550/arxiv.2504.07444 · pith_short_12: M7AHZEJCYN6I · pith_short_16: M7AHZEJCYN6I4R3S · pith_short_8: M7AHZEJC

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/M7AHZEJCYN6I4R3SYSOKP2XBUZ \
  | 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: 67c07c9122c37c8e4772c49ca7eae1a6576b26c80a7cfef4a272555bb61466a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72141be66ca401e1bdf86ad4d4fb252e72727cdea65417e567217f9c85dcbb83",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-04-10T04:24:54Z",
    "title_canon_sha256": "b30a050668874ac9b318efdcf2e9a72bd040a529020bd82d640a0786e70614b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.07444",
    "kind": "arxiv",
    "version": 1
  }
}