Pith Number

pith:2SU3K446

pith:2026:2SU3K446BCCBM6JYUG3MWIZNIE

not attested not anchored not stored refs pending

Nyquist-Sampled Time-Domain Adjoint FDTD for Memory-Efficient Broadband Nanophotonic Inverse Design

Haejun Chung, Mingyu Park, Owen D. Miller

arxiv:2607.08159 v1 · 2026-07-09 · 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{2SU3K446BCCBM6JYUG3MWIZNIE}

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	2026-07-10T01:19:28.305629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4a9b5739e0884167938a1b6cb232d4132080870a383e0a7c4e56e1b142214e2

Aliases

arxiv: 2607.08159 · arxiv_version: 2607.08159v1 · doi: 10.48550/arxiv.2607.08159 · pith_short_12: 2SU3K446BCCB · pith_short_16: 2SU3K446BCCBM6JY · pith_short_8: 2SU3K446

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/2SU3K446BCCBM6JYUG3MWIZNIE \
  | 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: d4a9b5739e0884167938a1b6cb232d4132080870a383e0a7c4e56e1b142214e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50fe9eb6e704df9e2e6aba3caef39c2e2bb03b1b00913dea84d76d402e077820",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-07-09T06:52:06Z",
    "title_canon_sha256": "7337ff1d863bb7dd69e71dd2b410b6febba3bcc6cdbd072e3ac9405971de493f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.08159",
    "kind": "arxiv",
    "version": 1
  }
}